13121210232031 has 8 divisors (see below), whose sum is σ = 14316118806528. Its totient is φ = 11926646871000.

The previous prime is 13121210232023. The next prime is 13121210232049. The reversal of 13121210232031 is 13023201212131.

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

It is a cyclic number.

It is not a de Polignac number, because 13121210232031 - 2³ = 13121210232023 is a prime.

It is a super-2 number, since 2×13121210232031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13121210231993 and 13121210232011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121210232001) 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, 86223885 + ... + 86375926.

It is an arithmetic number, because the mean of its divisors is an integer number (1789514850816).

Almost surely, 2^{13121210232031} is an apocalyptic number.

13121210232031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

13121210232031 is a deficient number, since it is larger than the sum of its proper divisors (1194908574497).

13121210232031 is a wasteful number, since it uses less digits than its factorization.

13121210232031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172606733.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13121210232031 its reverse (13023201212131), we get a palindrome (26144411444162).

The spelling of 13121210232031 in words is "thirteen trillion, one hundred twenty-one billion, two hundred ten million, two hundred thirty-two thousand, thirty-one".