11121535400 has 96 divisors (see below), whose sum is σ = 26658115200. Its totient is φ = 4312972800.

The previous prime is 11121535393. The next prime is 11121535429. The reversal of 11121535400 is 453512111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 854945 + ... + 867855.

It is an arithmetic number, because the mean of its divisors is an integer number (277688700).

Almost surely, 2^11121535400 is an apocalyptic number.

11121535400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11121535400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13329057600).

11121535400 is an abundant number, since it is smaller than the sum of its proper divisors (15536579800).

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

11121535400 is a wasteful number, since it uses less digits than its factorization.

11121535400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13059 (or 13050 counting only the distinct ones).

The product of its (nonzero) digits is 600, while the sum is 23.

The spelling of 11121535400 in words is "eleven billion, one hundred twenty-one million, five hundred thirty-five thousand, four hundred".