111440231313 has 12 divisors (see below), whose sum is σ = 153887346288. Its totient is φ = 71731641520.

The previous prime is 111440231299. The next prime is 111440231339. The reversal of 111440231313 is 313132044111.

It is a happy number.

It is not a de Polignac number, because 111440231313 - 2⁶ = 111440231249 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111440231113) 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, 22082343 + ... + 22087388.

It is an arithmetic number, because the mean of its divisors is an integer number (12823945524).

Almost surely, 2^111440231313 is an apocalyptic number.

It is an amenable number.

111440231313 is a deficient number, since it is larger than the sum of its proper divisors (42447114975).

111440231313 is an equidigital number, since it uses as much as digits as its factorization.

111440231313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44169792 (or 44169763 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 111440231313 its reverse (313132044111), we get a palindrome (424572275424).

The spelling of 111440231313 in words is "one hundred eleven billion, four hundred forty million, two hundred thirty-one thousand, three hundred thirteen".