123358013577 has 12 divisors (see below), whose sum is σ = 178270616004. Its totient is φ = 82198605600.

The previous prime is 123358013561. The next prime is 123358013587. The reversal of 123358013577 is 775310853321.

123358013577 is a `hidden beast` number, since 1 + 2 + 3 + 3 + 580 + 13 + 57 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22582876176 + 100775137401 = 150276^2 + 317451^2 .

It is not a de Polignac number, because 123358013577 - 2⁴ = 123358013561 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (123358013557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3319674 + ... + 3356627.

It is an arithmetic number, because the mean of its divisors is an integer number (14855884667).

Almost surely, 2^123358013577 is an apocalyptic number.

It is an amenable number.

123358013577 is a deficient number, since it is larger than the sum of its proper divisors (54912602427).

123358013577 is a wasteful number, since it uses less digits than its factorization.

123358013577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6678360 (or 6678357 counting only the distinct ones).

The product of its (nonzero) digits is 529200, while the sum is 45.

Adding to 123358013577 its reverse (775310853321), we get a palindrome (898668866898).

The spelling of 123358013577 in words is "one hundred twenty-three billion, three hundred fifty-eight million, thirteen thousand, five hundred seventy-seven".