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313104211431021 = 354095236023621
BaseRepresentation
bin100011100110001000100000…
…1010011001100111001101101
31112001121110200211122022200000
41013030101001103030321231
5312014344411111243041
63025530031121254513
7122644014146010513
oct10714210123147155
91461543624568600
10313104211431021
119084582881981a
122b14983aa94439
13105927a624b68a
145746478d4c4b3
15262e85bd1bbb6
hex11cc4414cce6d

313104211431021 has 48 divisors (see below), whose sum is σ = 471057841974720. Its totient is φ = 207827611885440.

The previous prime is 313104211430981. The next prime is 313104211431047. The reversal of 313104211431021 is 120134112401313.

313104211431021 is a `hidden beast` number, since 3 + 1 + 3 + 10 + 4 + 211 + 431 + 0 + 2 + 1 = 666.

It is not a de Polignac number, because 313104211431021 - 217 = 313104211299949 is a prime.

It is a super-2 number, since 2×3131042114310212 (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313104211436021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48967591 + ... + 54991211.

It is an arithmetic number, because the mean of its divisors is an integer number (9813705041140).

Almost surely, 2313104211431021 is an apocalyptic number.

It is an amenable number.

313104211431021 is a deficient number, since it is larger than the sum of its proper divisors (157953630543699).

313104211431021 is an equidigital number, since it uses as much as digits as its factorization.

313104211431021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6024568 (or 6024556 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 313104211431021 its reverse (120134112401313), we get a palindrome (433238323832334).

The spelling of 313104211431021 in words is "three hundred thirteen trillion, one hundred four billion, two hundred eleven million, four hundred thirty-one thousand, twenty-one".

Divisors: 1 3 9 27 81 243 409 523 1227 1569 3681 4707 11043 14121 33129 42363 99387 127089 213907 641721 1925163 5775489 6023621 17326467 18070863 51979401 54212589 162637767 487913301 1463739903 2463660989 3150353783 7390982967 9451061349 22172948901 28353184047 66518846703 85059552141 199556540109 255178656423 598669620327 765535969269 1288494697247 3865484091741 11596452275223 34789356825669 104368070477007 313104211431021