20125460523172 has 12 divisors (see below), whose sum is σ = 35229942125056. Its totient is φ = 10059762773160.

The previous prime is 20125460523143. The next prime is 20125460523199. The reversal of 20125460523172 is 27132506452102.

It is a super-2 number, since 2×20125460523172² (a number of 27 digits) contains 22 as substring.

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, 741856848 + ... + 741883975.

Almost surely, 2^{20125460523172} is an apocalyptic number.

It is an amenable number.

20125460523172 is a deficient number, since it is larger than the sum of its proper divisors (15104481601884).

20125460523172 is a wasteful number, since it uses less digits than its factorization.

20125460523172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1483744218 (or 1483744216 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 40.

Adding to 20125460523172 its reverse (27132506452102), we get a palindrome (47257966975274).

The spelling of 20125460523172 in words is "twenty trillion, one hundred twenty-five billion, four hundred sixty million, five hundred twenty-three thousand, one hundred seventy-two".