312311132123 has 2 divisors, whose sum is σ = 312311132124. Its totient is φ = 312311132122.

The previous prime is 312311132087. The next prime is 312311132143. The reversal of 312311132123 is 321231113213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312311132123 - 2¹⁸ = 312310869979 is a prime.

It is not a weakly prime, because it can be changed into another prime (312311132143) 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, 156155566061 + 156155566062.

It is an arithmetic number, because the mean of its divisors is an integer number (156155566062).

Almost surely, 2^312311132123 is an apocalyptic number.

312311132123 is a deficient number, since it is larger than the sum of its proper divisors (1).

312311132123 is an equidigital number, since it uses as much as digits as its factorization.

312311132123 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

Adding to 312311132123 its reverse (321231113213), we get a palindrome (633542245336).

The spelling of 312311132123 in words is "three hundred twelve billion, three hundred eleven million, one hundred thirty-two thousand, one hundred twenty-three".