31232201212113 has 16 divisors (see below), whose sum is σ = 47403815279616. Its totient is φ = 18105623890640.

The previous prime is 31232201212033. The next prime is 31232201212153. The reversal of 31232201212113 is 31121210223213.

It is not a de Polignac number, because 31232201212113 - 2²⁰ = 31232200163537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31232201212153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20574571845 + ... + 20574573362.

It is an arithmetic number, because the mean of its divisors is an integer number (2962738454976).

Almost surely, 2^{31232201212113} is an apocalyptic number.

31232201212113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31232201212113 is a deficient number, since it is larger than the sum of its proper divisors (16171614067503).

31232201212113 is a wasteful number, since it uses less digits than its factorization.

31232201212113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41149145244.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 31232201212113 its reverse (31121210223213), we get a palindrome (62353411435326).

The spelling of 31232201212113 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred one million, two hundred twelve thousand, one hundred thirteen".