312115213307 has 2 divisors, whose sum is σ = 312115213308. Its totient is φ = 312115213306.

The previous prime is 312115213283. The next prime is 312115213321. The reversal of 312115213307 is 703312511213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312115213307 - 2¹⁸ = 312114951163 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312115213307.

It is not a weakly prime, because it can be changed into another prime (312115213807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156057606653 + 156057606654.

It is an arithmetic number, because the mean of its divisors is an integer number (156057606654).

Almost surely, 2^312115213307 is an apocalyptic number.

312115213307 is a deficient number, since it is larger than the sum of its proper divisors (1).

312115213307 is an equidigital number, since it uses as much as digits as its factorization.

312115213307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The spelling of 312115213307 in words is "three hundred twelve billion, one hundred fifteen million, two hundred thirteen thousand, three hundred seven".