11780723112 has 64 divisors (see below), whose sum is σ = 29841799680. Its totient is φ = 3875193792.

The previous prime is 11780723081. The next prime is 11780723147. The reversal of 11780723112 is 21132708711.

It is a super-2 number, since 2×11780723112² (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 15 ways as a sum of consecutive naturals, for example, 666663 + ... + 684105.

It is an arithmetic number, because the mean of its divisors is an integer number (466278120).

Almost surely, 2^11780723112 is an apocalyptic number.

11780723112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11780723112 is an abundant number, since it is smaller than the sum of its proper divisors (18061076568).

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

11780723112 is a wasteful number, since it uses less digits than its factorization.

11780723112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17822 (or 17818 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 33.

The spelling of 11780723112 in words is "eleven billion, seven hundred eighty million, seven hundred twenty-three thousand, one hundred twelve".