123413723197 has 2 divisors, whose sum is σ = 123413723198. Its totient is φ = 123413723196.

The previous prime is 123413723123. The next prime is 123413723227. The reversal of 123413723197 is 791327314321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 101130996121 + 22282727076 = 318011^2 + 149274^2 .

It is a cyclic number.

It is not a de Polignac number, because 123413723197 - 2²³ = 123405334589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123413723297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61706861598 + 61706861599.

It is an arithmetic number, because the mean of its divisors is an integer number (61706861599).

Almost surely, 2^123413723197 is an apocalyptic number.

It is an amenable number.

123413723197 is a deficient number, since it is larger than the sum of its proper divisors (1).

123413723197 is an equidigital number, since it uses as much as digits as its factorization.

123413723197 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The spelling of 123413723197 in words is "one hundred twenty-three billion, four hundred thirteen million, seven hundred twenty-three thousand, one hundred ninety-seven".