31122131032 has 16 divisors (see below), whose sum is σ = 58355938800. Its totient is φ = 15560547360.

The previous prime is 31122130957. The next prime is 31122131039. The reversal of 31122131032 is 23013122113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31122131039) 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, 337357 + ... + 419587.

It is an arithmetic number, because the mean of its divisors is an integer number (3647246175).

Almost surely, 2^31122131032 is an apocalyptic number.

It is an amenable number.

31122131032 is a deficient number, since it is larger than the sum of its proper divisors (27233807768).

31122131032 is a wasteful number, since it uses less digits than its factorization.

31122131032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129546 (or 129542 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31122131032 its reverse (23013122113), we get a palindrome (54135253145).

The spelling of 31122131032 in words is "thirty-one billion, one hundred twenty-two million, one hundred thirty-one thousand, thirty-two".