123635365057 has 2 divisors, whose sum is σ = 123635365058. Its totient is φ = 123635365056.

The previous prime is 123635365039. The next prime is 123635365067. The reversal of 123635365057 is 750563536321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100676751616 + 22958613441 = 317296^2 + 151521^2 .

It is a cyclic number.

It is not a de Polignac number, because 123635365057 - 2⁷ = 123635364929 is a prime.

It is a super-2 number, since 2×123635365057² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123635364998 and 123635365016.

It is not a weakly prime, because it can be changed into another prime (123635365067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61817682528 + 61817682529.

It is an arithmetic number, because the mean of its divisors is an integer number (61817682529).

Almost surely, 2^123635365057 is an apocalyptic number.

It is an amenable number.

123635365057 is a deficient number, since it is larger than the sum of its proper divisors (1).

123635365057 is an equidigital number, since it uses as much as digits as its factorization.

123635365057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701000, while the sum is 46.

The spelling of 123635365057 in words is "one hundred twenty-three billion, six hundred thirty-five million, three hundred sixty-five thousand, fifty-seven".