31111222313132 has 48 divisors (see below), whose sum is σ = 59039947582560. Its totient is φ = 14259393487872.

The previous prime is 31111222313069. The next prime is 31111222313177. The reversal of 31111222313132 is 23131322211113.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13171844 + ... + 15353172.

It is an arithmetic number, because the mean of its divisors is an integer number (1229998907970).

Almost surely, 2^{31111222313132} is an apocalyptic number.

It is an amenable number.

31111222313132 is a deficient number, since it is larger than the sum of its proper divisors (27928725269428).

31111222313132 is a wasteful number, since it uses less digits than its factorization.

31111222313132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183250 (or 2183248 counting only the distinct ones).

The product of its digits is 1296, while the sum is 26.

Adding to 31111222313132 its reverse (23131322211113), we get a palindrome (54242544524245).

The spelling of 31111222313132 in words is "thirty-one trillion, one hundred eleven billion, two hundred twenty-two million, three hundred thirteen thousand, one hundred thirty-two".