31112110859 has 2 divisors, whose sum is σ = 31112110860. Its totient is φ = 31112110858.

The previous prime is 31112110853. The next prime is 31112110901. The reversal of 31112110859 is 95801121113.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31112110859 - 2¹² = 31112106763 is a prime.

It is not a weakly prime, because it can be changed into another prime (31112110853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15556055429 + 15556055430.

It is an arithmetic number, because the mean of its divisors is an integer number (15556055430).

Almost surely, 2^31112110859 is an apocalyptic number.

31112110859 is a deficient number, since it is larger than the sum of its proper divisors (1).

31112110859 is an equidigital number, since it uses as much as digits as its factorization.

31112110859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 32.

The spelling of 31112110859 in words is "thirty-one billion, one hundred twelve million, one hundred ten thousand, eight hundred fifty-nine".