31431327400 has 48 divisors (see below), whose sum is σ = 79721281440. Its totient is φ = 11429572800.

The previous prime is 31431327377. The next prime is 31431327401. The reversal of 31431327400 is 472313413.

It is not an unprimeable number, because it can be changed into a prime (31431327401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7141284 + ... + 7145683.

It is an arithmetic number, because the mean of its divisors is an integer number (1660860030).

Almost surely, 2^31431327400 is an apocalyptic number.

It is an amenable number.

31431327400 is an abundant number, since it is smaller than the sum of its proper divisors (48289954040).

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

31431327400 is a wasteful number, since it uses less digits than its factorization.

31431327400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14286994 (or 14286985 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 28.

The spelling of 31431327400 in words is "thirty-one billion, four hundred thirty-one million, three hundred twenty-seven thousand, four hundred".