312234420552139 has 2 divisors, whose sum is σ = 312234420552140. Its totient is φ = 312234420552138.

The previous prime is 312234420552127. The next prime is 312234420552203. The reversal of 312234420552139 is 931255024432213.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312234420552139 is a prime.

It is not a weakly prime, because it can be changed into another prime (312234420522139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156117210276069 + 156117210276070.

It is an arithmetic number, because the mean of its divisors is an integer number (156117210276070).

Almost surely, 2^{312234420552139} is an apocalyptic number.

312234420552139 is a deficient number, since it is larger than the sum of its proper divisors (1).

312234420552139 is an equidigital number, since it uses as much as digits as its factorization.

312234420552139 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1555200, while the sum is 46.

The spelling of 312234420552139 in words is "three hundred twelve trillion, two hundred thirty-four billion, four hundred twenty million, five hundred fifty-two thousand, one hundred thirty-nine".