111131232313 has 4 divisors (see below), whose sum is σ = 116980244560. Its totient is φ = 105282220068.

The previous prime is 111131232283. The next prime is 111131232319. The reversal of 111131232313 is 313232131111.

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 111131232313 - 2¹³ = 111131224121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111131232319) 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, 2924506095 + ... + 2924506132.

It is an arithmetic number, because the mean of its divisors is an integer number (29245061140).

Almost surely, 2^111131232313 is an apocalyptic number.

It is an amenable number.

111131232313 is a deficient number, since it is larger than the sum of its proper divisors (5849012247).

111131232313 is an equidigital number, since it uses as much as digits as its factorization.

111131232313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5849012246.

The product of its digits is 324, while the sum is 22.

Adding to 111131232313 its reverse (313232131111), we get a palindrome (424363363424).

The spelling of 111131232313 in words is "one hundred eleven billion, one hundred thirty-one million, two hundred thirty-two thousand, three hundred thirteen".