31102423427 has 2 divisors, whose sum is σ = 31102423428. Its totient is φ = 31102423426.

The previous prime is 31102423397. The next prime is 31102423433. The reversal of 31102423427 is 72432420113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31102423427 - 2¹² = 31102419331 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31102423427.

It is not a weakly prime, because it can be changed into another prime (31102423127) 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, 15551211713 + 15551211714.

It is an arithmetic number, because the mean of its divisors is an integer number (15551211714).

Almost surely, 2^31102423427 is an apocalyptic number.

31102423427 is a deficient number, since it is larger than the sum of its proper divisors (1).

31102423427 is an equidigital number, since it uses as much as digits as its factorization.

31102423427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 29.

The spelling of 31102423427 in words is "thirty-one billion, one hundred two million, four hundred twenty-three thousand, four hundred twenty-seven".