31373859132 has 216 divisors, whose sum is σ = 102841030656. Its totient is φ = 7885944000.

The previous prime is 31373859131. The next prime is 31373859191. The reversal of 31373859132 is 23195837313.

31373859132 is a `hidden beast` number, since 3 + 137 + 385 + 9 + 132 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31373859131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 928657 + ... + 961847.

Almost surely, 2^31373859132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31373859132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51420515328).

31373859132 is an abundant number, since it is smaller than the sum of its proper divisors (71467171524).

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

31373859132 is a wasteful number, since it uses less digits than its factorization.

31373859132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33261 (or 33245 counting only the distinct ones).

The product of its digits is 408240, while the sum is 45.

The spelling of 31373859132 in words is "thirty-one billion, three hundred seventy-three million, eight hundred fifty-nine thousand, one hundred thirty-two".