31100312986 has 8 divisors (see below), whose sum is σ = 46652429844. Its totient is φ = 15549503040.

The previous prime is 31100312981. The next prime is 31100313007. The reversal of 31100312986 is 68921300113.

It can be written as a sum of positive squares in 2 ways, for example, as 28910540961 + 2189772025 = 170031^2 + 46795^2 .

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

It is not an unprimeable number, because it can be changed into a prime (31100312981) 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, 264895 + ... + 363826.

Almost surely, 2^31100312986 is an apocalyptic number.

31100312986 is a deficient number, since it is larger than the sum of its proper divisors (15552116858).

31100312986 is a wasteful number, since it uses less digits than its factorization.

31100312986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653456.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 31100312986 in words is "thirty-one billion, one hundred million, three hundred twelve thousand, nine hundred eighty-six".