312333231241021 has 2 divisors, whose sum is σ = 312333231241022. Its totient is φ = 312333231241020.

The previous prime is 312333231240809. The next prime is 312333231241027. The reversal of 312333231241021 is 120142132333213.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 166891802032921 + 145441429208100 = 12918661^2 + 12059910^2 .

It is an emirp because it is prime and its reverse (120142132333213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312333231241021 - 2¹³ = 312333231232829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312333231241027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156166615620510 + 156166615620511.

It is an arithmetic number, because the mean of its divisors is an integer number (156166615620511).

Almost surely, 2^{312333231241021} is an apocalyptic number.

It is an amenable number.

312333231241021 is a deficient number, since it is larger than the sum of its proper divisors (1).

312333231241021 is an equidigital number, since it uses as much as digits as its factorization.

312333231241021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 312333231241021 its reverse (120142132333213), we get a palindrome (432475363574234).

The spelling of 312333231241021 in words is "three hundred twelve trillion, three hundred thirty-three billion, two hundred thirty-one million, two hundred forty-one thousand, twenty-one".