31432210113 has 16 divisors (see below), whose sum is σ = 44448690816. Its totient is φ = 19715139840.

The previous prime is 31432210001. The next prime is 31432210123. The reversal of 31432210113 is 31101223413.

It is not a de Polignac number, because 31432210113 - 2¹⁴ = 31432193729 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31432210113.

It is not an unprimeable number, because it can be changed into a prime (31432210123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3729720 + ... + 3738137.

It is an arithmetic number, because the mean of its divisors is an integer number (2778043176).

Almost surely, 2^31432210113 is an apocalyptic number.

It is an amenable number.

31432210113 is a deficient number, since it is larger than the sum of its proper divisors (13016480703).

31432210113 is a wasteful number, since it uses less digits than its factorization.

31432210113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7467944.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31432210113 its reverse (31101223413), we get a palindrome (62533433526).

The spelling of 31432210113 in words is "thirty-one billion, four hundred thirty-two million, two hundred ten thousand, one hundred thirteen".