13125445420 has 48 divisors (see below), whose sum is σ = 28773662400. Its totient is φ = 5019846656.

The previous prime is 13125445393. The next prime is 13125445433. The reversal of 13125445420 is 2454452131.

13125445420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×13125445420³ (a number of 31 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1582404 + ... + 1590676.

It is an arithmetic number, because the mean of its divisors is an integer number (599451300).

Almost surely, 2^13125445420 is an apocalyptic number.

13125445420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13125445420 is an abundant number, since it is smaller than the sum of its proper divisors (15648216980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13125445420 is a wasteful number, since it uses less digits than its factorization.

13125445420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11754 (or 11752 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 13125445420 its reverse (2454452131), we get a palindrome (15579897551).

The spelling of 13125445420 in words is "thirteen billion, one hundred twenty-five million, four hundred forty-five thousand, four hundred twenty".