11261112720 has 160 divisors (see below), whose sum is σ = 41012625024. Its totient is φ = 2519961600.

The previous prime is 11261112713. The next prime is 11261112727. The reversal of 11261112720 is 2721116211.

It is an interprime number because it is at equal distance from previous prime (11261112713) and next prime (11261112727).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (11261112727) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 129741 + ... + 198380.

Almost surely, 2^11261112720 is an apocalyptic number.

11261112720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11261112720 is an abundant number, since it is smaller than the sum of its proper divisors (29751512304).

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

11261112720 is a wasteful number, since it uses less digits than its factorization.

11261112720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328161 (or 328155 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 24.

Adding to 11261112720 its reverse (2721116211), we get a palindrome (13982228931).

The spelling of 11261112720 in words is "eleven billion, two hundred sixty-one million, one hundred twelve thousand, seven hundred twenty".