123413530172 has 12 divisors (see below), whose sum is σ = 216333039216. Its totient is φ = 61604090400.

The previous prime is 123413530147. The next prime is 123413530267. The reversal of 123413530172 is 271035314321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25665968 + ... + 25670775.

It is an arithmetic number, because the mean of its divisors is an integer number (18027753268).

Almost surely, 2^123413530172 is an apocalyptic number.

It is an amenable number.

123413530172 is a deficient number, since it is larger than the sum of its proper divisors (92919509044).

123413530172 is a wasteful number, since it uses less digits than its factorization.

123413530172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51337348 (or 51337346 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 123413530172 its reverse (271035314321), we get a palindrome (394448844493).

The spelling of 123413530172 in words is "one hundred twenty-three billion, four hundred thirteen million, five hundred thirty thousand, one hundred seventy-two".