122310131231 has 2 divisors, whose sum is σ = 122310131232. Its totient is φ = 122310131230.

The previous prime is 122310131221. The next prime is 122310131233. The reversal of 122310131231 is 132131013221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122310131231 - 2²² = 122305936927 is a prime.

It is a super-2 number, since 2×122310131231² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 122310131233, 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 (122310131233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61155065615 + 61155065616.

It is an arithmetic number, because the mean of its divisors is an integer number (61155065616).

Almost surely, 2^122310131231 is an apocalyptic number.

122310131231 is a deficient number, since it is larger than the sum of its proper divisors (1).

122310131231 is an equidigital number, since it uses as much as digits as its factorization.

122310131231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 122310131231 its reverse (132131013221), we get a palindrome (254441144452).

The spelling of 122310131231 in words is "one hundred twenty-two billion, three hundred ten million, one hundred thirty-one thousand, two hundred thirty-one".