13420551125 has 32 divisors (see below), whose sum is σ = 17415272160. Its totient is φ = 10313049600.

The previous prime is 13420551113. The next prime is 13420551167. The reversal of 13420551125 is 52115502431.

It can be written as a sum of positive squares in 16 ways, for example, as 3609846724 + 9810704401 = 60082^2 + 99049^2 .

It is not a de Polignac number, because 13420551125 - 2³² = 9125583829 is a prime.

It is a super-2 number, since 2×13420551125² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 704729 + ... + 723521.

It is an arithmetic number, because the mean of its divisors is an integer number (544227255).

Almost surely, 2^13420551125 is an apocalyptic number.

It is an amenable number.

13420551125 is a deficient number, since it is larger than the sum of its proper divisors (3994721035).

13420551125 is a wasteful number, since it uses less digits than its factorization.

13420551125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19034 (or 19024 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 29.

The spelling of 13420551125 in words is "thirteen billion, four hundred twenty million, five hundred fifty-one thousand, one hundred twenty-five".