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313231200020101 = 1128475563638191
BaseRepresentation
bin100011100111000011101001…
…0011010001110011010000101
31112002001121110220002001010001
41013032013102122032122011
5312023434444201120401
63030104232103401301
7122656131065135266
oct10716072232163205
91462047426061101
10313231200020101
11908946735442a0
122b16a37b153231
13105a1763274b4c
14574c6844c096d
152632ce05d5601
hex11ce1d268e685

313231200020101 has 4 divisors (see below), whose sum is σ = 341706763658304. Its totient is φ = 284755636381900.

The previous prime is 313231200020051. The next prime is 313231200020159. The reversal of 313231200020101 is 101020002132313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 313231200020101 - 29 = 313231200019589 is a prime.

It is a super-2 number, since 2×3132312000201012 (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313231200020191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14237781819085 + ... + 14237781819106.

It is an arithmetic number, because the mean of its divisors is an integer number (85426690914576).

Almost surely, 2313231200020101 is an apocalyptic number.

It is an amenable number.

313231200020101 is a deficient number, since it is larger than the sum of its proper divisors (28475563638203).

313231200020101 is a wasteful number, since it uses less digits than its factorization.

313231200020101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28475563638202.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 313231200020101 its reverse (101020002132313), we get a palindrome (414251202152414).

The spelling of 313231200020101 in words is "three hundred thirteen trillion, two hundred thirty-one billion, two hundred million, twenty thousand, one hundred one".

Divisors: 1 11 28475563638191 313231200020101