123321413161 has 2 divisors, whose sum is σ = 123321413162. Its totient is φ = 123321413160.

The previous prime is 123321413153. The next prime is 123321413261. The reversal of 123321413161 is 161314123321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 119470466025 + 3850947136 = 345645^2 + 62056^2 .

It is a cyclic number.

It is not a de Polignac number, because 123321413161 - 2³ = 123321413153 is a prime.

It is not a weakly prime, because it can be changed into another prime (123321413101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61660706580 + 61660706581.

It is an arithmetic number, because the mean of its divisors is an integer number (61660706581).

Almost surely, 2^123321413161 is an apocalyptic number.

It is an amenable number.

123321413161 is a deficient number, since it is larger than the sum of its proper divisors (1).

123321413161 is an equidigital number, since it uses as much as digits as its factorization.

123321413161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 28.

Adding to 123321413161 its reverse (161314123321), we get a palindrome (284635536482).

The spelling of 123321413161 in words is "one hundred twenty-three billion, three hundred twenty-one million, four hundred thirteen thousand, one hundred sixty-one".