31431320030132 has 48 divisors (see below), whose sum is σ = 60917870065920. Its totient is φ = 14070583612800.

The previous prime is 31431320030111. The next prime is 31431320030197. The reversal of 31431320030132 is 23103002313413.

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, 10008419 + ... + 12768362.

It is an arithmetic number, because the mean of its divisors is an integer number (1269122293040).

Almost surely, 2^{31431320030132} is an apocalyptic number.

It is an amenable number.

31431320030132 is a deficient number, since it is larger than the sum of its proper divisors (29486550035788).

31431320030132 is a wasteful number, since it uses less digits than its factorization.

31431320030132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22777272 (or 22777270 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 31431320030132 its reverse (23103002313413), we get a palindrome (54534322343545).

The spelling of 31431320030132 in words is "thirty-one trillion, four hundred thirty-one billion, three hundred twenty million, thirty thousand, one hundred thirty-two".