111223323121013 has 4 divisors (see below), whose sum is σ = 113809912030848. Its totient is φ = 108636734211180.

The previous prime is 111223323120983. The next prime is 111223323121019. The reversal of 111223323121013 is 310121323322111.

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.

It is a cyclic number.

It is not a de Polignac number, because 111223323121013 - 2⁸ = 111223323120757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111223323121019) 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, 1293294454853 + ... + 1293294454938.

It is an arithmetic number, because the mean of its divisors is an integer number (28452478007712).

Almost surely, 2^{111223323121013} is an apocalyptic number.

It is an amenable number.

111223323121013 is a deficient number, since it is larger than the sum of its proper divisors (2586588909835).

111223323121013 is an equidigital number, since it uses as much as digits as its factorization.

111223323121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2586588909834.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 111223323121013 its reverse (310121323322111), we get a palindrome (421344646443124).

The spelling of 111223323121013 in words is "one hundred eleven trillion, two hundred twenty-three billion, three hundred twenty-three million, one hundred twenty-one thousand, thirteen".