13520111430 has 64 divisors (see below), whose sum is σ = 37113914880. Its totient is φ = 3087796224.

The previous prime is 13520111399. The next prime is 13520111443. The reversal of 13520111430 is 3411102531.

13520111430 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13520111397 and 13520111406.

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 238822 + ... + 289958.

It is an arithmetic number, because the mean of its divisors is an integer number (579904920).

Almost surely, 2^13520111430 is an apocalyptic number.

13520111430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13520111430 is an abundant number, since it is smaller than the sum of its proper divisors (23593803450).

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

13520111430 is a wasteful number, since it uses less digits than its factorization.

13520111430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52413.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 13520111430 its reverse (3411102531), we get a palindrome (16931213961).

The spelling of 13520111430 in words is "thirteen billion, five hundred twenty million, one hundred eleven thousand, four hundred thirty".