12312401 has 2 divisors, whose sum is σ = 12312402. Its totient is φ = 12312400.

The previous prime is 12312397. The next prime is 12312407. The reversal of 12312401 is 10421321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10394176 + 1918225 = 3224^2 + 1385^2 .

It is a cyclic number.

It is not a de Polignac number, because 12312401 - 2² = 12312397 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12312407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6156200 + 6156201.

It is an arithmetic number, because the mean of its divisors is an integer number (6156201).

Almost surely, 2^12312401 is an apocalyptic number.

It is an amenable number.

12312401 is a deficient number, since it is larger than the sum of its proper divisors (1).

12312401 is an equidigital number, since it uses as much as digits as its factorization.

12312401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 12312401 is about 3508.9031049603. The cubic root of 12312401 is about 230.9125747515.

Adding to 12312401 its reverse (10421321), we get a palindrome (22733722).

The spelling of 12312401 in words is "twelve million, three hundred twelve thousand, four hundred one".