31431000113 has 8 divisors (see below), whose sum is σ = 32493524448. Its totient is φ = 30383547264.

The previous prime is 31431000079. The next prime is 31431000131. The reversal of 31431000113 is 31100013413.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31431000113 - 2¹⁸ = 31430737969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31431000091 and 31431000100.

It is not an unprimeable number, because it can be changed into a prime (31431000193) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3763631 + ... + 3771972.

It is an arithmetic number, because the mean of its divisors is an integer number (4061690556).

Almost surely, 2^31431000113 is an apocalyptic number.

It is an amenable number.

31431000113 is a deficient number, since it is larger than the sum of its proper divisors (1062524335).

31431000113 is an equidigital number, since it uses as much as digits as its factorization.

31431000113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7535743.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31431000113 its reverse (31100013413), we get a palindrome (62531013526).

The spelling of 31431000113 in words is "thirty-one billion, four hundred thirty-one million, one hundred thirteen", and thus it is an aban number.