11551130120 has 32 divisors (see below), whose sum is σ = 26120664000. Its totient is φ = 4597230528.

The previous prime is 11551130113. The next prime is 11551130141. The reversal of 11551130120 is 2103115511.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11551130092 and 11551130101.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717614 + ... + 733533.

It is an arithmetic number, because the mean of its divisors is an integer number (816270750).

Almost surely, 2^11551130120 is an apocalyptic number.

11551130120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11551130120 is an abundant number, since it is smaller than the sum of its proper divisors (14569533880).

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

11551130120 is a wasteful number, since it uses less digits than its factorization.

11551130120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1451357 (or 1451353 counting only the distinct ones).

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 11551130120 its reverse (2103115511), we get a palindrome (13654245631).

The spelling of 11551130120 in words is "eleven billion, five hundred fifty-one million, one hundred thirty thousand, one hundred twenty".