31430230113 has 4 divisors (see below), whose sum is σ = 41906973488. Its totient is φ = 20953486740.

The previous prime is 31430230033. The next prime is 31430230199. The reversal of 31430230113 is 31103203413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 31430230113 - 2⁹ = 31430229601 is a prime.

It is a super-2 number, since 2×31430230113² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31430230113.

It is not an unprimeable number, because it can be changed into a prime (31430230313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5238371683 + ... + 5238371688.

It is an arithmetic number, because the mean of its divisors is an integer number (10476743372).

Almost surely, 2^31430230113 is an apocalyptic number.

It is an amenable number.

31430230113 is a deficient number, since it is larger than the sum of its proper divisors (10476743375).

31430230113 is a wasteful number, since it uses less digits than its factorization.

31430230113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10476743374.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31430230113 its reverse (31103203413), we get a palindrome (62533433526).

The spelling of 31430230113 in words is "thirty-one billion, four hundred thirty million, two hundred thirty thousand, one hundred thirteen".