123470725172 has 24 divisors (see below), whose sum is σ = 220963099392. Its totient is φ = 60347008800.

The previous prime is 123470725171. The next prime is 123470725187. The reversal of 123470725172 is 271527074321.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123470725171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1017104 + ... + 1132007.

It is an arithmetic number, because the mean of its divisors is an integer number (9206795808).

Almost surely, 2^123470725172 is an apocalyptic number.

It is an amenable number.

123470725172 is a deficient number, since it is larger than the sum of its proper divisors (97492374220).

123470725172 is a wasteful number, since it uses less digits than its factorization.

123470725172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149439 (or 2149437 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 41.

Adding to 123470725172 its reverse (271527074321), we get a palindrome (394997799493).

The spelling of 123470725172 in words is "one hundred twenty-three billion, four hundred seventy million, seven hundred twenty-five thousand, one hundred seventy-two".