31324000140 has 72 divisors (see below), whose sum is σ = 95599144368. Its totient is φ = 8301813120.

The previous prime is 31324000111. The next prime is 31324000151. The reversal of 31324000140 is 4100042313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 504471 + ... + 563150.

It is an arithmetic number, because the mean of its divisors is an integer number (1327765894).

Almost surely, 2^31324000140 is an apocalyptic number.

31324000140 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31324000140 is an abundant number, since it is smaller than the sum of its proper divisors (64275144228).

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

31324000140 is a wasteful number, since it uses less digits than its factorization.

31324000140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067799 (or 1067794 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 31324000140 its reverse (4100042313), we get a palindrome (35424042453).

The spelling of 31324000140 in words is "thirty-one billion, three hundred twenty-four million, one hundred forty", and thus it is an aban number.