31222332113 has 4 divisors (see below), whose sum is σ = 35682665280. Its totient is φ = 26761998948.

The previous prime is 31222332079. The next prime is 31222332131. The reversal of 31222332113 is 31123322213.

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 31222332113 - 2²² = 31218137809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31222332613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2230166573 + ... + 2230166586.

It is an arithmetic number, because the mean of its divisors is an integer number (8920666320).

Almost surely, 2^31222332113 is an apocalyptic number.

It is an amenable number.

31222332113 is a deficient number, since it is larger than the sum of its proper divisors (4460333167).

31222332113 is an equidigital number, since it uses as much as digits as its factorization.

31222332113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4460333166.

The product of its digits is 1296, while the sum is 23.

Adding to 31222332113 its reverse (31123322213), we get a palindrome (62345654326).

The spelling of 31222332113 in words is "thirty-one billion, two hundred twenty-two million, three hundred thirty-two thousand, one hundred thirteen".