12311207 has 2 divisors, whose sum is σ = 12311208. Its totient is φ = 12311206.

The previous prime is 12311191. The next prime is 12311209. The reversal of 12311207 is 70211321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12311207 - 2⁴ = 12311191 is a prime.

Together with 12311209, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12311209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155603 + 6155604.

It is an arithmetic number, because the mean of its divisors is an integer number (6155604).

Almost surely, 2^12311207 is an apocalyptic number.

12311207 is a deficient number, since it is larger than the sum of its proper divisors (1).

12311207 is an equidigital number, since it uses as much as digits as its factorization.

12311207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 12311207 is about 3508.7329621959. The cubic root of 12311207 is about 230.9051102305.

Adding to 12311207 its reverse (70211321), we get a palindrome (82522528).

The spelling of 12311207 in words is "twelve million, three hundred eleven thousand, two hundred seven".