111311323013 has 4 divisors (see below), whose sum is σ = 121430534208. Its totient is φ = 101192111820.

The previous prime is 111311323003. The next prime is 111311323027. The reversal of 111311323013 is 310323113111.

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 111311323013 - 2¹⁴ = 111311306629 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 (111311323003) 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, 5059605581 + ... + 5059605602.

It is an arithmetic number, because the mean of its divisors is an integer number (30357633552).

Almost surely, 2^111311323013 is an apocalyptic number.

It is an amenable number.

111311323013 is a deficient number, since it is larger than the sum of its proper divisors (10119211195).

111311323013 is a wasteful number, since it uses less digits than its factorization.

111311323013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10119211194.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 111311323013 its reverse (310323113111), we get a palindrome (421634436124).

The spelling of 111311323013 in words is "one hundred eleven billion, three hundred eleven million, three hundred twenty-three thousand, thirteen".