31930382106 has 48 divisors (see below), whose sum is σ = 81616224768. Its totient is φ = 8828676000.

The previous prime is 31930382101. The next prime is 31930382119. The reversal of 31930382106 is 60128303913.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31930382101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4083445 + ... + 4091256.

It is an arithmetic number, because the mean of its divisors is an integer number (1700338016).

Almost surely, 2^31930382106 is an apocalyptic number.

31930382106 is an abundant number, since it is smaller than the sum of its proper divisors (49685842662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31930382106 is a wasteful number, since it uses less digits than its factorization.

31930382106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8174747 (or 8174744 counting only the distinct ones).

The product of its (nonzero) digits is 23328, while the sum is 36.

The spelling of 31930382106 in words is "thirty-one billion, nine hundred thirty million, three hundred eighty-two thousand, one hundred six".