123322040254421 has 2 divisors, whose sum is σ = 123322040254422. Its totient is φ = 123322040254420.

The previous prime is 123322040254367. The next prime is 123322040254433. The reversal of 123322040254421 is 124452040223321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 122866805320900 + 455234933521 = 11084530^2 + 674711^2 .

It is a cyclic number.

It is not a de Polignac number, because 123322040254421 - 2¹⁰ = 123322040253397 is a prime.

It is a super-2 number, since 2×123322040254421² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123322040254321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61661020127210 + 61661020127211.

It is an arithmetic number, because the mean of its divisors is an integer number (61661020127211).

Almost surely, 2^{123322040254421} is an apocalyptic number.

It is an amenable number.

123322040254421 is a deficient number, since it is larger than the sum of its proper divisors (1).

123322040254421 is an equidigital number, since it uses as much as digits as its factorization.

123322040254421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 123322040254421 its reverse (124452040223321), we get a palindrome (247774080477742).

The spelling of 123322040254421 in words is "one hundred twenty-three trillion, three hundred twenty-two billion, forty million, two hundred fifty-four thousand, four hundred twenty-one".