111223132313 has 4 divisors (see below), whose sum is σ = 111226082340. Its totient is φ = 111220182288.

The previous prime is 111223132309. The next prime is 111223132333. The reversal of 111223132313 is 313231322111.

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 11425899664 + 99797232649 = 106892^2 + 315907^2 .

It is a cyclic number.

It is not a de Polignac number, because 111223132313 - 2² = 111223132309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111223132333) 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, 1417718 + ... + 1494111.

It is an arithmetic number, because the mean of its divisors is an integer number (27806520585).

Almost surely, 2^111223132313 is an apocalyptic number.

It is an amenable number.

111223132313 is a deficient number, since it is larger than the sum of its proper divisors (2950027).

111223132313 is an equidigital number, since it uses as much as digits as its factorization.

111223132313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2950026.

The product of its digits is 648, while the sum is 23.

Adding to 111223132313 its reverse (313231322111), we get a palindrome (424454454424).

The spelling of 111223132313 in words is "one hundred eleven billion, two hundred twenty-three million, one hundred thirty-two thousand, three hundred thirteen".