31330312127 has 2 divisors, whose sum is σ = 31330312128. Its totient is φ = 31330312126.

The previous prime is 31330312093. The next prime is 31330312177. The reversal of 31330312127 is 72121303313.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31330312127 - 2²⁰ = 31329263551 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31330312096 and 31330312105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31330312177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15665156063 + 15665156064.

It is an arithmetic number, because the mean of its divisors is an integer number (15665156064).

Almost surely, 2^31330312127 is an apocalyptic number.

31330312127 is a deficient number, since it is larger than the sum of its proper divisors (1).

31330312127 is an equidigital number, since it uses as much as digits as its factorization.

31330312127 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 26.

The spelling of 31330312127 in words is "thirty-one billion, three hundred thirty million, three hundred twelve thousand, one hundred twenty-seven".