111323440331 has 4 divisors (see below), whose sum is σ = 113912357592. Its totient is φ = 108734523072.

The previous prime is 111323440321. The next prime is 111323440447. The reversal of 111323440331 is 133044323111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133044323111 = 7 ⋅19006331873.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111323440331 is a prime.

It is a super-2 number, since 2×111323440331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111323440331.

It is not an unprimeable number, because it can be changed into a prime (111323440321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1294458566 + ... + 1294458651.

It is an arithmetic number, because the mean of its divisors is an integer number (28478089398).

Almost surely, 2^111323440331 is an apocalyptic number.

111323440331 is a deficient number, since it is larger than the sum of its proper divisors (2588917261).

111323440331 is an equidigital number, since it uses as much as digits as its factorization.

111323440331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2588917260.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 111323440331 its reverse (133044323111), we get a palindrome (244367763442).

The spelling of 111323440331 in words is "one hundred eleven billion, three hundred twenty-three million, four hundred forty thousand, three hundred thirty-one".