12172103125 has 96 divisors (see below), whose sum is σ = 19549748736. Its totient is φ = 7365600000.

The previous prime is 12172103113. The next prime is 12172103131. The reversal of 12172103125 is 52130127121.

It is not a de Polignac number, because 12172103125 - 2¹⁷ = 12171972053 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 12172103125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6539695 + ... + 6541555.

It is an arithmetic number, because the mean of its divisors is an integer number (203643216).

Almost surely, 2^12172103125 is an apocalyptic number.

It is an amenable number.

12172103125 is a deficient number, since it is larger than the sum of its proper divisors (7377645611).

12172103125 is an equidigital number, since it uses as much as digits as its factorization.

12172103125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1929 (or 1909 counting only the distinct ones).

The product of its (nonzero) digits is 840, while the sum is 25.

The spelling of 12172103125 in words is "twelve billion, one hundred seventy-two million, one hundred three thousand, one hundred twenty-five".