31422031112013 has 4 divisors (see below), whose sum is σ = 41896041482688. Its totient is φ = 20948020741340.

The previous prime is 31422031111967. The next prime is 31422031112027. The reversal of 31422031112013 is 31021113022413.

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 a de Polignac number, because none of the positive numbers 2^k-31422031112013 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31422031162013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5237005185333 + ... + 5237005185338.

It is an arithmetic number, because the mean of its divisors is an integer number (10474010370672).

Almost surely, 2^{31422031112013} is an apocalyptic number.

It is an amenable number.

31422031112013 is a deficient number, since it is larger than the sum of its proper divisors (10474010370675).

31422031112013 is a wasteful number, since it uses less digits than its factorization.

31422031112013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10474010370674.

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

Adding to 31422031112013 its reverse (31021113022413), we get a palindrome (62443144134426).

The spelling of 31422031112013 in words is "thirty-one trillion, four hundred twenty-two billion, thirty-one million, one hundred twelve thousand, thirteen".