111332312213 has 4 divisors (see below), whose sum is σ = 112317554028. Its totient is φ = 110347070400.

The previous prime is 111332312173. The next prime is 111332312227. The reversal of 111332312213 is 312213233111.

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 51885095089 + 59447217124 = 227783^2 + 243818^2 .

It is a cyclic number.

It is not a de Polignac number, because 111332312213 - 2⁸ = 111332311957 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 (111332312513) 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, 492620738 + ... + 492620963.

It is an arithmetic number, because the mean of its divisors is an integer number (28079388507).

Almost surely, 2^111332312213 is an apocalyptic number.

It is an amenable number.

111332312213 is a deficient number, since it is larger than the sum of its proper divisors (985241815).

111332312213 is an equidigital number, since it uses as much as digits as its factorization.

111332312213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 985241814.

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

Adding to 111332312213 its reverse (312213233111), we get a palindrome (423545545324).

The spelling of 111332312213 in words is "one hundred eleven billion, three hundred thirty-two million, three hundred twelve thousand, two hundred thirteen".