11331231120 has 120 divisors (see below), whose sum is σ = 41513539392. Its totient is φ = 2746963200.

The previous prime is 11331231113. The next prime is 11331231157. The reversal of 11331231120 is 2113213311.

11331231120 is a `hidden beast` number, since 1 + 1 + 331 + 2 + 311 + 20 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11331231093 and 11331231102.

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, 707436 + ... + 723275.

Almost surely, 2^11331231120 is an apocalyptic number.

11331231120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11331231120 is an abundant number, since it is smaller than the sum of its proper divisors (30182308272).

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

11331231120 is a wasteful number, since it uses less digits than its factorization.

11331231120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1430741 (or 1430732 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11331231120 its reverse (2113213311), we get a palindrome (13444444431).

The spelling of 11331231120 in words is "eleven billion, three hundred thirty-one million, two hundred thirty-one thousand, one hundred twenty".