31932230140 has 48 divisors (see below), whose sum is σ = 69341577984. Its totient is φ = 12339302400.

The previous prime is 31932230069. The next prime is 31932230179. The reversal of 31932230140 is 4103223913.

It is a junction number, because it is equal to n+sod(n) for n = 31932230099 and 31932230108.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 313110 + ... + 402370.

It is an arithmetic number, because the mean of its divisors is an integer number (1444616208).

Almost surely, 2^31932230140 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 31932230140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34670788992).

31932230140 is an abundant number, since it is smaller than the sum of its proper divisors (37409347844).

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

31932230140 is a wasteful number, since it uses less digits than its factorization.

31932230140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89878 (or 89876 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The spelling of 31932230140 in words is "thirty-one billion, nine hundred thirty-two million, two hundred thirty thousand, one hundred forty".