111011231211313 has 4 divisors (see below), whose sum is σ = 111012557578228. Its totient is φ = 111009904844400.

The previous prime is 111011231211289. The next prime is 111011231211319. The reversal of 111011231211313 is 313112132110111.

It is a happy number.

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 3565816625569 + 107445414585744 = 1888337^2 + 10365588^2 .

It is a cyclic number.

It is not a de Polignac number, because 111011231211313 - 2²⁵ = 111011197656881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111011231211319) 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, 663057906 + ... + 663225307.

It is an arithmetic number, because the mean of its divisors is an integer number (27753139394557).

Almost surely, 2^{111011231211313} is an apocalyptic number.

It is an amenable number.

111011231211313 is a deficient number, since it is larger than the sum of its proper divisors (1326366915).

111011231211313 is an equidigital number, since it uses as much as digits as its factorization.

111011231211313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1326366914.

The product of its (nonzero) digits is 108, while the sum is 22.

Adding to 111011231211313 its reverse (313112132110111), we get a palindrome (424123363321424).

The spelling of 111011231211313 in words is "one hundred eleven trillion, eleven billion, two hundred thirty-one million, two hundred eleven thousand, three hundred thirteen".