20013232112031 has 32 divisors (see below), whose sum is σ = 27838218240000. Its totient is φ = 12773404844928.

The previous prime is 20013232112017. The next prime is 20013232112051. The reversal of 20013232112031 is 13021123231002.

It is not a de Polignac number, because 20013232112031 - 2⁹ = 20013232111519 is a prime.

It is a super-2 number, since 2×20013232112031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20013232111989 and 20013232112007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013232112011) 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 31 ways as a sum of consecutive naturals, for example, 3593826 + ... + 7276128.

It is an arithmetic number, because the mean of its divisors is an integer number (869944320000).

Almost surely, 2^{20013232112031} is an apocalyptic number.

20013232112031 is a deficient number, since it is larger than the sum of its proper divisors (7824986127969).

20013232112031 is a wasteful number, since it uses less digits than its factorization.

20013232112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3682863.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20013232112031 its reverse (13021123231002), we get a palindrome (33034355343033).

The spelling of 20013232112031 in words is "twenty trillion, thirteen billion, two hundred thirty-two million, one hundred twelve thousand, thirty-one".