31120032132113 has 4 divisors (see below), whose sum is σ = 31843753809648. Its totient is φ = 30396310454580.

The previous prime is 31120032132109. The next prime is 31120032132143. The reversal of 31120032132113 is 31123123002113.

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 31120032132113 - 2² = 31120032132109 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31120032132143) 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, 361860838703 + ... + 361860838788.

It is an arithmetic number, because the mean of its divisors is an integer number (7960938452412).

Almost surely, 2^{31120032132113} is an apocalyptic number.

It is an amenable number.

31120032132113 is a deficient number, since it is larger than the sum of its proper divisors (723721677535).

31120032132113 is an equidigital number, since it uses as much as digits as its factorization.

31120032132113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723721677534.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31120032132113 its reverse (31123123002113), we get a palindrome (62243155134226).

The spelling of 31120032132113 in words is "thirty-one trillion, one hundred twenty billion, thirty-two million, one hundred thirty-two thousand, one hundred thirteen".