123422611057 has 4 divisors (see below), whose sum is σ = 123426866916. Its totient is φ = 123418355200.

The previous prime is 123422611001. The next prime is 123422611093. The reversal of 123422611057 is 750116224321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 46654272016 + 76768339041 = 215996^2 + 277071^2 .

It is a cyclic number.

It is not a de Polignac number, because 123422611057 - 2²⁷ = 123288393329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123422617057) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2084128 + ... + 2142529.

It is an arithmetic number, because the mean of its divisors is an integer number (30856716729).

Almost surely, 2^123422611057 is an apocalyptic number.

It is an amenable number.

123422611057 is a deficient number, since it is larger than the sum of its proper divisors (4255859).

123422611057 is an equidigital number, since it uses as much as digits as its factorization.

123422611057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4255858.

The product of its (nonzero) digits is 20160, while the sum is 34.

Adding to 123422611057 its reverse (750116224321), we get a palindrome (873538835378).

The spelling of 123422611057 in words is "one hundred twenty-three billion, four hundred twenty-two million, six hundred eleven thousand, fifty-seven".