111323031012 has 36 divisors (see below), whose sum is σ = 281914376016. Its totient is φ = 37039831920.

The previous prime is 111323030993. The next prime is 111323031019. The reversal of 111323031012 is 210130323111.

111323031012 is a `hidden beast` number, since 1 + 113 + 230 + 310 + 12 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is not an unprimeable number, because it can be changed into a prime (111323031019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2806914 + ... + 2846297.

Almost surely, 2^111323031012 is an apocalyptic number.

111323031012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

111323031012 is an abundant number, since it is smaller than the sum of its proper divisors (170591345004).

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

111323031012 is a wasteful number, since it uses less digits than its factorization.

111323031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5653768 (or 5653763 counting only the distinct ones).

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

Adding to 111323031012 its reverse (210130323111), we get a palindrome (321453354123).

The spelling of 111323031012 in words is "one hundred eleven billion, three hundred twenty-three million, thirty-one thousand, twelve".