111312113331 has 16 divisors (see below), whose sum is σ = 148554113184. Its totient is φ = 74139135744.

The previous prime is 111312113327. The next prime is 111312113333. The reversal of 111312113331 is 133311213111.

It is not a de Polignac number, because 111312113331 - 2² = 111312113327 is a prime.

It is a super-2 number, since 2×111312113331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 111312113298 and 111312113307.

It is not an unprimeable number, because it can be changed into a prime (111312113333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26393935 + ... + 26398151.

It is an arithmetic number, because the mean of its divisors is an integer number (9284632074).

Almost surely, 2^111312113331 is an apocalyptic number.

111312113331 is a deficient number, since it is larger than the sum of its proper divisors (37241999853).

111312113331 is a wasteful number, since it uses less digits than its factorization.

111312113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10310.

The product of its digits is 162, while the sum is 21.

Adding to 111312113331 its reverse (133311213111), we get a palindrome (244623326442).

The spelling of 111312113331 in words is "one hundred eleven billion, three hundred twelve million, one hundred thirteen thousand, three hundred thirty-one".