111312012313 has 4 divisors (see below), whose sum is σ = 112021006180. Its totient is φ = 110603018448.

The previous prime is 111312012299. The next prime is 111312012349. The reversal of 111312012313 is 313210213111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28958509584 + 82353502729 = 170172^2 + 286973^2 .

It is a cyclic number.

It is not a de Polignac number, because 111312012313 - 2¹³ = 111312004121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111312012113) 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, 354496698 + ... + 354497011.

It is an arithmetic number, because the mean of its divisors is an integer number (28005251545).

Almost surely, 2^111312012313 is an apocalyptic number.

It is an amenable number.

111312012313 is a deficient number, since it is larger than the sum of its proper divisors (708993867).

111312012313 is an equidigital number, since it uses as much as digits as its factorization.

111312012313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708993866.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 111312012313 its reverse (313210213111), we get a palindrome (424522225424).

The spelling of 111312012313 in words is "one hundred eleven billion, three hundred twelve million, twelve thousand, three hundred thirteen".