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13120211023031 = 72503374873801
BaseRepresentation
bin1011111011101100100110…
…0001000111010010110111
31201110021120001202012221202
42332323021201013102313
53204430143010214111
643523201452003115
72522622026421320
oct276731141072267
951407501665852
1013120211023031
1141a9283096612
12157a95016049b
137422cc7b9188
143350433bd447
1517b447e22b3b
hexbeec98474b7

13120211023031 has 8 divisors (see below), whose sum is σ = 14995126074144. Its totient is φ = 11245445769600.

The previous prime is 13120211023021. The next prime is 13120211023093. The reversal of 13120211023031 is 13032011202131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13120211023031 - 26 = 13120211022967 is a prime.

It is a super-2 number, since 2×131202110230312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13120211022994 and 13120211023012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13120211023001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37261670 + ... + 37612131.

It is an arithmetic number, because the mean of its divisors is an integer number (1874390759268).

Almost surely, 213120211023031 is an apocalyptic number.

13120211023031 is a deficient number, since it is larger than the sum of its proper divisors (1874915051113).

13120211023031 is an equidigital number, since it uses as much as digits as its factorization.

13120211023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74898841.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13120211023031 its reverse (13032011202131), we get a palindrome (26152222225162).

The spelling of 13120211023031 in words is "thirteen trillion, one hundred twenty billion, two hundred eleven million, twenty-three thousand, thirty-one".

Divisors: 1 7 25033 175231 74873801 524116607 1874315860433 13120211023031