2311012421 has 2 divisors, whose sum is σ = 2311012422. Its totient is φ = 2311012420.

The previous prime is 2311012399. The next prime is 2311012447. The reversal of 2311012421 is 1242101132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2114620225 + 196392196 = 45985^2 + 14014^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311012421 - 2¹⁰ = 2311011397 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2311012421.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2311012481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155506210 + 1155506211.

It is an arithmetic number, because the mean of its divisors is an integer number (1155506211).

Almost surely, 2^2311012421 is an apocalyptic number.

It is an amenable number.

2311012421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311012421 is an equidigital number, since it uses as much as digits as its factorization.

2311012421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2311012421 is about 48072.9905560284. The cubic root of 2311012421 is about 1322.1095021456.

Adding to 2311012421 its reverse (1242101132), we get a palindrome (3553113553).

The spelling of 2311012421 in words is "two billion, three hundred eleven million, twelve thousand, four hundred twenty-one".