122310613421 has 2 divisors, whose sum is σ = 122310613422. Its totient is φ = 122310613420.

The previous prime is 122310613409. The next prime is 122310613441. The reversal of 122310613421 is 124316013221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114572772196 + 7737841225 = 338486^2 + 87965^2 .

It is a cyclic number.

It is not a de Polignac number, because 122310613421 - 2²² = 122306419117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122310613441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61155306710 + 61155306711.

It is an arithmetic number, because the mean of its divisors is an integer number (61155306711).

Almost surely, 2^122310613421 is an apocalyptic number.

It is an amenable number.

122310613421 is a deficient number, since it is larger than the sum of its proper divisors (1).

122310613421 is an equidigital number, since it uses as much as digits as its factorization.

122310613421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 122310613421 its reverse (124316013221), we get a palindrome (246626626642).

The spelling of 122310613421 in words is "one hundred twenty-two billion, three hundred ten million, six hundred thirteen thousand, four hundred twenty-one".