312121112239 has 2 divisors, whose sum is σ = 312121112240. Its totient is φ = 312121112238.

The previous prime is 312121112203. The next prime is 312121112273. The reversal of 312121112239 is 932211121213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312121112239 - 2²⁵ = 312087557807 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312121112339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156060556119 + 156060556120.

It is an arithmetic number, because the mean of its divisors is an integer number (156060556120).

Almost surely, 2^312121112239 is an apocalyptic number.

312121112239 is a deficient number, since it is larger than the sum of its proper divisors (1).

312121112239 is an equidigital number, since it uses as much as digits as its factorization.

312121112239 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1296, while the sum is 28.

The spelling of 312121112239 in words is "three hundred twelve billion, one hundred twenty-one million, one hundred twelve thousand, two hundred thirty-nine".