312205053870187 has 2 divisors, whose sum is σ = 312205053870188. Its totient is φ = 312205053870186.

The previous prime is 312205053870173. The next prime is 312205053870197. The reversal of 312205053870187 is 781078350502213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312205053870187 is a prime.

It is not a weakly prime, because it can be changed into another prime (312205053870197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156102526935093 + 156102526935094.

It is an arithmetic number, because the mean of its divisors is an integer number (156102526935094).

Almost surely, 2^{312205053870187} is an apocalyptic number.

312205053870187 is a deficient number, since it is larger than the sum of its proper divisors (1).

312205053870187 is an equidigital number, since it uses as much as digits as its factorization.

312205053870187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2822400, while the sum is 52.

The spelling of 312205053870187 in words is "three hundred twelve trillion, two hundred five billion, fifty-three million, eight hundred seventy thousand, one hundred eighty-seven".