312021310232123 has 2 divisors, whose sum is σ = 312021310232124. Its totient is φ = 312021310232122.

The previous prime is 312021310232077. The next prime is 312021310232147. The reversal of 312021310232123 is 321232013120213.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 312021310232123 - 2⁸ = 312021310231867 is a prime.

It is a super-2 number, since 2×312021310232123² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 312021310232092 and 312021310232101.

It is not a weakly prime, because it can be changed into another prime (312021310232323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156010655116061 + 156010655116062.

It is an arithmetic number, because the mean of its divisors is an integer number (156010655116062).

Almost surely, 2^{312021310232123} is an apocalyptic number.

312021310232123 is a deficient number, since it is larger than the sum of its proper divisors (1).

312021310232123 is an equidigital number, since it uses as much as digits as its factorization.

312021310232123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 312021310232123 its reverse (321232013120213), we get a palindrome (633253323352336).

The spelling of 312021310232123 in words is "three hundred twelve trillion, twenty-one billion, three hundred ten million, two hundred thirty-two thousand, one hundred twenty-three".