31312031113147 has 2 divisors, whose sum is σ = 31312031113148. Its totient is φ = 31312031113146.

The previous prime is 31312031113079. The next prime is 31312031113201. The reversal of 31312031113147 is 74131113021313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31312031113147 - 2⁷ = 31312031113019 is a prime.

It is not a weakly prime, because it can be changed into another prime (31312031113247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15656015556573 + 15656015556574.

It is an arithmetic number, because the mean of its divisors is an integer number (15656015556574).

Almost surely, 2^{31312031113147} is an apocalyptic number.

31312031113147 is a deficient number, since it is larger than the sum of its proper divisors (1).

31312031113147 is an equidigital number, since it uses as much as digits as its factorization.

31312031113147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4536, while the sum is 31.

The spelling of 31312031113147 in words is "thirty-one trillion, three hundred twelve billion, thirty-one million, one hundred thirteen thousand, one hundred forty-seven".