111021312313 has 4 divisors (see below), whose sum is σ = 111031937680. Its totient is φ = 111010686948.

The previous prime is 111021312289. The next prime is 111021312319. The reversal of 111021312313 is 313213120111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 313213120111 = 17 ⋅18424301183.

It is a cyclic number.

It is not a de Polignac number, because 111021312313 - 2²¹ = 111019215161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111021312319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5296995 + ... + 5317912.

It is an arithmetic number, because the mean of its divisors is an integer number (27757984420).

Almost surely, 2^111021312313 is an apocalyptic number.

It is an amenable number.

111021312313 is a deficient number, since it is larger than the sum of its proper divisors (10625367).

111021312313 is a wasteful number, since it uses less digits than its factorization.

111021312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10625366.

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

Adding to 111021312313 its reverse (313213120111), we get a palindrome (424234432424).

The spelling of 111021312313 in words is "one hundred eleven billion, twenty-one million, three hundred twelve thousand, three hundred thirteen".