12304631 has 2 divisors, whose sum is σ = 12304632. Its totient is φ = 12304630.

The previous prime is 12304601. The next prime is 12304657. The reversal of 12304631 is 13640321.

It is a strong prime.

It is an emirp because it is prime and its reverse (13640321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12304631 - 2²² = 8110327 is a prime.

It is a super-2 number, since 2×12304631² = 302807888092322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12304601) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6152315 + 6152316.

It is an arithmetic number, because the mean of its divisors is an integer number (6152316).

Almost surely, 2^12304631 is an apocalyptic number.

12304631 is a deficient number, since it is larger than the sum of its proper divisors (1).

12304631 is an equidigital number, since it uses as much as digits as its factorization.

12304631 is an odious number, because the sum of its binary digits is odd.

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

The square root of 12304631 is about 3507.7957466192. The cubic root of 12304631 is about 230.8639904486.

Adding to 12304631 its reverse (13640321), we get a palindrome (25944952).

The spelling of 12304631 in words is "twelve million, three hundred four thousand, six hundred thirty-one".