123162326406401 has 2 divisors, whose sum is σ = 123162326406402. Its totient is φ = 123162326406400.

The previous prime is 123162326406397. The next prime is 123162326406491. The reversal of 123162326406401 is 104604623261321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99143740839025 + 24018585567376 = 9957095^2 + 4900876^2 .

It is a cyclic number.

It is not a de Polignac number, because 123162326406401 - 2² = 123162326406397 is a prime.

It is a super-2 number, since 2×123162326406401² (a number of 29 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (123162326406491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61581163203200 + 61581163203201.

It is an arithmetic number, because the mean of its divisors is an integer number (61581163203201).

Almost surely, 2^{123162326406401} is an apocalyptic number.

It is an amenable number.

123162326406401 is a deficient number, since it is larger than the sum of its proper divisors (1).

123162326406401 is an equidigital number, since it uses as much as digits as its factorization.

123162326406401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 248832, while the sum is 41.

Adding to 123162326406401 its reverse (104604623261321), we get a palindrome (227766949667722).

The spelling of 123162326406401 in words is "one hundred twenty-three trillion, one hundred sixty-two billion, three hundred twenty-six million, four hundred six thousand, four hundred one".