123682057157 has 16 divisors (see below), whose sum is σ = 127483625472. Its totient is φ = 119934425520.

The previous prime is 123682057153. The next prime is 123682057189. The reversal of 123682057157 is 751750286321.

It is a cyclic number.

It is not a de Polignac number, because 123682057157 - 2² = 123682057153 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (47).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123682057153) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2183528 + ... + 2239454.

It is an arithmetic number, because the mean of its divisors is an integer number (7967726592).

Almost surely, 2^123682057157 is an apocalyptic number.

It is an amenable number.

123682057157 is a deficient number, since it is larger than the sum of its proper divisors (3801568315).

123682057157 is a wasteful number, since it uses less digits than its factorization.

123682057157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56408.

The product of its (nonzero) digits is 705600, while the sum is 47.

The spelling of 123682057157 in words is "one hundred twenty-three billion, six hundred eighty-two million, fifty-seven thousand, one hundred fifty-seven".