123350402457 has 12 divisors (see below), whose sum is σ = 182988285220. Its totient is φ = 80011071648.

The previous prime is 123350402429. The next prime is 123350402467. The reversal of 123350402457 is 754204053321.

123350402457 is a `hidden beast` number, since 1 + 23 + 350 + 40 + 245 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 106403830416 + 16946572041 = 326196^2 + 130179^2 .

It is not a de Polignac number, because 123350402457 - 2¹² = 123350398361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123350402467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 185210482 + ... + 185211147.

Almost surely, 2^123350402457 is an apocalyptic number.

It is an amenable number.

123350402457 is a deficient number, since it is larger than the sum of its proper divisors (59637882763).

123350402457 is a wasteful number, since it uses less digits than its factorization.

123350402457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370421672 (or 370421669 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 36.

Adding to 123350402457 its reverse (754204053321), we get a palindrome (877554455778).

The spelling of 123350402457 in words is "one hundred twenty-three billion, three hundred fifty million, four hundred two thousand, four hundred fifty-seven".