31432031140 has 96 divisors (see below), whose sum is σ = 68142057984. Its totient is φ = 12172792320.

The previous prime is 31432031117. The next prime is 31432031143. The reversal of 31432031140 is 4113023413.

It is not an unprimeable number, because it can be changed into a prime (31432031143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 55047055 + ... + 55047625.

It is an arithmetic number, because the mean of its divisors is an integer number (709813104).

Almost surely, 2^31432031140 is an apocalyptic number.

It is an amenable number.

31432031140 is an abundant number, since it is smaller than the sum of its proper divisors (36710026844).

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

31432031140 is a wasteful number, since it uses less digits than its factorization.

31432031140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31432031140 its reverse (4113023413), we get a palindrome (35545054553).

The spelling of 31432031140 in words is "thirty-one billion, four hundred thirty-two million, thirty-one thousand, one hundred forty".