312212233139 has 2 divisors, whose sum is σ = 312212233140. Its totient is φ = 312212233138.

The previous prime is 312212233079. The next prime is 312212233141. The reversal of 312212233139 is 931332212213.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312212233139 is a prime.

Together with 312212233141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (312212233169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156106116569 + 156106116570.

It is an arithmetic number, because the mean of its divisors is an integer number (156106116570).

Almost surely, 2^312212233139 is an apocalyptic number.

312212233139 is a deficient number, since it is larger than the sum of its proper divisors (1).

312212233139 is an equidigital number, since it uses as much as digits as its factorization.

312212233139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 32.

The spelling of 312212233139 in words is "three hundred twelve billion, two hundred twelve million, two hundred thirty-three thousand, one hundred thirty-nine".