123623123647157 has 2 divisors, whose sum is σ = 123623123647158. Its totient is φ = 123623123647156.

The previous prime is 123623123647099. The next prime is 123623123647159. The reversal of 123623123647157 is 751746321326321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 90482538597361 + 33140585049796 = 9512231^2 + 5756786^2 .

It is a cyclic number.

It is not a de Polignac number, because 123623123647157 - 2²⁰ = 123623122598581 is a prime.

Together with 123623123647159, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 123623123647099 and 123623123647108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123623123647159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61811561823578 + 61811561823579.

It is an arithmetic number, because the mean of its divisors is an integer number (61811561823579).

Almost surely, 2^{123623123647157} is an apocalyptic number.

It is an amenable number.

123623123647157 is a deficient number, since it is larger than the sum of its proper divisors (1).

123623123647157 is an equidigital number, since it uses as much as digits as its factorization.

123623123647157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7620480, while the sum is 53.

The spelling of 123623123647157 in words is "one hundred twenty-three trillion, six hundred twenty-three billion, one hundred twenty-three million, six hundred forty-seven thousand, one hundred fifty-seven".