111031113412 has 24 divisors (see below), whose sum is σ = 196159221720. Its totient is φ = 54985996800.

The previous prime is 111031113383. The next prime is 111031113419. The reversal of 111031113412 is 214311130111.

It can be written as a sum of positive squares in 4 ways, for example, as 35666588736 + 75364524676 = 188856^2 + 274526^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111031113412.

It is not an unprimeable number, because it can be changed into a prime (111031113419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1175778 + ... + 1266694.

It is an arithmetic number, because the mean of its divisors is an integer number (8173300905).

Almost surely, 2^111031113412 is an apocalyptic number.

It is an amenable number.

111031113412 is a deficient number, since it is larger than the sum of its proper divisors (85128108308).

111031113412 is a wasteful number, since it uses less digits than its factorization.

111031113412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93831 (or 93829 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 111031113412 its reverse (214311130111), we get a palindrome (325342243523).

The spelling of 111031113412 in words is "one hundred eleven billion, thirty-one million, one hundred thirteen thousand, four hundred twelve".