12310997 has 2 divisors, whose sum is σ = 12310998. Its totient is φ = 12310996.

The previous prime is 12310979. The next prime is 12311017. The reversal of 12310997 is 79901321.

It is a happy number.

Together with previous prime (12310979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8145316 + 4165681 = 2854^2 + 2041^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310997 - 2⁶ = 12310933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12310927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155498 + 6155499.

It is an arithmetic number, because the mean of its divisors is an integer number (6155499).

Almost surely, 2^12310997 is an apocalyptic number.

It is an amenable number.

12310997 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310997 is an equidigital number, since it uses as much as digits as its factorization.

12310997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402, while the sum is 32.

The square root of 12310997 is about 3508.7030367359. The cubic root of 12310997 is about 230.9037973252.

The spelling of 12310997 in words is "twelve million, three hundred ten thousand, nine hundred ninety-seven".