312332424031021 has 4 divisors (see below), whose sum is σ = 312371795326492. Its totient is φ = 312293052735552.

The previous prime is 312332424031013. The next prime is 312332424031051. The reversal of 312332424031021 is 120130424233213.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142762804858921 + 169569619172100 = 11948339^2 + 13021890^2 .

It is a cyclic number.

It is not a de Polignac number, because 312332424031021 - 2³ = 312332424031013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312332424031051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19685635836 + ... + 19685651701.

It is an arithmetic number, because the mean of its divisors is an integer number (78092948831623).

Almost surely, 2^{312332424031021} is an apocalyptic number.

It is an amenable number.

312332424031021 is a deficient number, since it is larger than the sum of its proper divisors (39371295471).

312332424031021 is an equidigital number, since it uses as much as digits as its factorization.

312332424031021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39371295470.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 312332424031021 its reverse (120130424233213), we get a palindrome (432462848264234).

The spelling of 312332424031021 in words is "three hundred twelve trillion, three hundred thirty-two billion, four hundred twenty-four million, thirty-one thousand, twenty-one".