31303113379 has 2 divisors, whose sum is σ = 31303113380. Its totient is φ = 31303113378.

The previous prime is 31303113299. The next prime is 31303113389. The reversal of 31303113379 is 97331130313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31303113379 is a prime.

It is not a weakly prime, because it can be changed into another prime (31303113389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15651556689 + 15651556690.

It is an arithmetic number, because the mean of its divisors is an integer number (15651556690).

Almost surely, 2^31303113379 is an apocalyptic number.

31303113379 is a deficient number, since it is larger than the sum of its proper divisors (1).

31303113379 is an equidigital number, since it uses as much as digits as its factorization.

31303113379 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15309, while the sum is 34.

The spelling of 31303113379 in words is "thirty-one billion, three hundred three million, one hundred thirteen thousand, three hundred seventy-nine".