31321011313127 has 2 divisors, whose sum is σ = 31321011313128. Its totient is φ = 31321011313126.

The previous prime is 31321011313073. The next prime is 31321011313147. The reversal of 31321011313127 is 72131311012313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31321011313127 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31321011313127.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31321011313147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660505656563 + 15660505656564.

It is an arithmetic number, because the mean of its divisors is an integer number (15660505656564).

Almost surely, 2^{31321011313127} is an apocalyptic number.

31321011313127 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321011313127 is an equidigital number, since it uses as much as digits as its factorization.

31321011313127 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 29.

The spelling of 31321011313127 in words is "thirty-one trillion, three hundred twenty-one billion, eleven million, three hundred thirteen thousand, one hundred twenty-seven".