11231320112 has 40 divisors (see below), whose sum is σ = 22053610800. Its totient is φ = 5540344832.

The previous prime is 11231320073. The next prime is 11231320157. The reversal of 11231320112 is 21102313211.

It is a super-2 number, since 2×11231320112² (a number of 21 digits) contains 22 as substring.

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, 656564 + ... + 673452.

It is an arithmetic number, because the mean of its divisors is an integer number (551340270).

Almost surely, 2^11231320112 is an apocalyptic number.

It is an amenable number.

11231320112 is a deficient number, since it is larger than the sum of its proper divisors (10822290688).

11231320112 is a wasteful number, since it uses less digits than its factorization.

11231320112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17453 (or 17447 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11231320112 its reverse (21102313211), we get a palindrome (32333633323).

The spelling of 11231320112 in words is "eleven billion, two hundred thirty-one million, three hundred twenty thousand, one hundred twelve".