2313031421 has 4 divisors (see below), whose sum is σ = 2314009344. Its totient is φ = 2312053500.

The previous prime is 2313031411. The next prime is 2313031477. The reversal of 2313031421 is 1241303132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313031421 is a prime.

It is a super-2 number, since 2×2313031421² = 10700228709066558482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2313031393 and 2313031402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2313031411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 485405 + ... + 490146.

It is an arithmetic number, because the mean of its divisors is an integer number (578502336).

Almost surely, 2^2313031421 is an apocalyptic number.

It is an amenable number.

2313031421 is a deficient number, since it is larger than the sum of its proper divisors (977923).

2313031421 is an equidigital number, since it uses as much as digits as its factorization.

2313031421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977922.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2313031421 is about 48093.9852892230. The cubic root of 2313031421 is about 1322.4944073482.

Adding to 2313031421 its reverse (1241303132), we get a palindrome (3554334553).

The spelling of 2313031421 in words is "two billion, three hundred thirteen million, thirty-one thousand, four hundred twenty-one".