111311331323 has 8 divisors (see below), whose sum is σ = 116154839808. Its totient is φ = 106468146664.

The previous prime is 111311331293. The next prime is 111311331349. The reversal of 111311331323 is 323133113111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111311331323 - 2³⁰ = 110237589499 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111311931323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 848786 + ... + 971112.

It is an arithmetic number, because the mean of its divisors is an integer number (14519354976).

Almost surely, 2^111311331323 is an apocalyptic number.

111311331323 is a deficient number, since it is larger than the sum of its proper divisors (4843508485).

111311331323 is a wasteful number, since it uses less digits than its factorization.

111311331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161913.

The product of its digits is 486, while the sum is 23.

Adding to 111311331323 its reverse (323133113111), we get a palindrome (434444444434).

The spelling of 111311331323 in words is "one hundred eleven billion, three hundred eleven million, three hundred thirty-one thousand, three hundred twenty-three".