2312400203021 has 2 divisors, whose sum is σ = 2312400203022. Its totient is φ = 2312400203020.

The previous prime is 2312400202999. The next prime is 2312400203039. The reversal of 2312400203021 is 1203020042132.

2312400203021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1954543802500 + 357856400521 = 1398050^2 + 598211^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312400203021 - 2¹⁰ = 2312400201997 is a prime.

It is a super-3 number, since 3×2312400203021³ (a number of 38 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2312400202984 and 2312400203002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2312400203221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156200101510 + 1156200101511.

It is an arithmetic number, because the mean of its divisors is an integer number (1156200101511).

Almost surely, 2^{2312400203021} is an apocalyptic number.

It is an amenable number.

2312400203021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312400203021 is an equidigital number, since it uses as much as digits as its factorization.

2312400203021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 2312400203021 its reverse (1203020042132), we get a palindrome (3515420245153).

The spelling of 2312400203021 in words is "two trillion, three hundred twelve billion, four hundred million, two hundred three thousand, twenty-one".