11534443320 has 64 divisors (see below), whose sum is σ = 34693816320. Its totient is φ = 3067808384.

The previous prime is 11534443313. The next prime is 11534443331. The reversal of 11534443320 is 2334443511.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79524 + ... + 171443.

It is an arithmetic number, because the mean of its divisors is an integer number (542090880).

Almost surely, 2^11534443320 is an apocalyptic number.

11534443320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11534443320 is an abundant number, since it is smaller than the sum of its proper divisors (23159373000).

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

11534443320 is a wasteful number, since it uses less digits than its factorization.

11534443320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251364 (or 251360 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 11534443320 its reverse (2334443511), we get a palindrome (13868886831).

The spelling of 11534443320 in words is "eleven billion, five hundred thirty-four million, four hundred forty-three thousand, three hundred twenty".