31331001131032 has 16 divisors (see below), whose sum is σ = 61837502232600. Its totient is φ = 14841000535680.

The previous prime is 31331001130999. The next prime is 31331001131033. The reversal of 31331001131032 is 23013110013313.

It is a junction number, because it is equal to n+sod(n) for n = 31331001130994 and 31331001131012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31331001131033) 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, 103062503569 + ... + 103062503872.

Almost surely, 2^{31331001131032} is an apocalyptic number.

It is an amenable number.

31331001131032 is a deficient number, since it is larger than the sum of its proper divisors (30506501101568).

31331001131032 is a wasteful number, since it uses less digits than its factorization.

31331001131032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206125007466 (or 206125007462 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 31331001131032 its reverse (23013110013313), we get a palindrome (54344111144345).

The spelling of 31331001131032 in words is "thirty-one trillion, three hundred thirty-one billion, one million, one hundred thirty-one thousand, thirty-two".