31313013332147 has 2 divisors, whose sum is σ = 31313013332148. Its totient is φ = 31313013332146.

The previous prime is 31313013332089. The next prime is 31313013332299. The reversal of 31313013332147 is 74123331031313.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31313013332147 is a prime.

It is not a weakly prime, because it can be changed into another prime (31313013392147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656506666073 + 15656506666074.

It is an arithmetic number, because the mean of its divisors is an integer number (15656506666074).

Almost surely, 2^{31313013332147} is an apocalyptic number.

31313013332147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31313013332147 is an equidigital number, since it uses as much as digits as its factorization.

31313013332147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 35.

The spelling of 31313013332147 in words is "thirty-one trillion, three hundred thirteen billion, thirteen million, three hundred thirty-two thousand, one hundred forty-seven".