31431300125 has 16 divisors (see below), whose sum is σ = 39241113600. Its totient is φ = 25135520400.

The previous prime is 31431300073. The next prime is 31431300151. The reversal of 31431300125 is 52100313413.

It is not a de Polignac number, because 31431300125 - 2¹⁰ = 31431299101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31431300125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 293636 + ... + 386114.

It is an arithmetic number, because the mean of its divisors is an integer number (2452569600).

Almost surely, 2^31431300125 is an apocalyptic number.

It is an amenable number.

31431300125 is a deficient number, since it is larger than the sum of its proper divisors (7809813475).

31431300125 is an equidigital number, since it uses as much as digits as its factorization.

31431300125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95213 (or 95203 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 31431300125 its reverse (52100313413), we get a palindrome (83531613538).

The spelling of 31431300125 in words is "thirty-one billion, four hundred thirty-one million, three hundred thousand, one hundred twenty-five".