31000111022 has 32 divisors (see below), whose sum is σ = 49273297920. Its totient is φ = 14597130240.

The previous prime is 31000111019. The next prime is 31000111033. The reversal of 31000111022 is 22011100013.

It is a super-2 number, since 2×31000111022² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31000110994 and 31000111012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2505383 + ... + 2517725.

It is an arithmetic number, because the mean of its divisors is an integer number (1539790560).

Almost surely, 2^31000111022 is an apocalyptic number.

31000111022 is a deficient number, since it is larger than the sum of its proper divisors (18273186898).

31000111022 is a wasteful number, since it uses less digits than its factorization.

31000111022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13208.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 31000111022 its reverse (22011100013), we get a palindrome (53011211035).

The spelling of 31000111022 in words is "thirty-one billion, one hundred eleven thousand, twenty-two".