111331113213 has 8 divisors (see below), whose sum is σ = 148443984000. Its totient is φ = 74219492288.

The previous prime is 111331113197. The next prime is 111331113233. The reversal of 111331113213 is 312311133111.

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 111331113213 - 2⁴ = 111331113197 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111331113213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111331113233) 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, 79893 + ... + 478586.

It is an arithmetic number, because the mean of its divisors is an integer number (18555498000).

Almost surely, 2^111331113213 is an apocalyptic number.

It is an amenable number.

111331113213 is a deficient number, since it is larger than the sum of its proper divisors (37112870787).

111331113213 is an equidigital number, since it uses as much as digits as its factorization.

111331113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 624931.

The product of its digits is 162, while the sum is 21.

Adding to 111331113213 its reverse (312311133111), we get a palindrome (423642246324).

The spelling of 111331113213 in words is "one hundred eleven billion, three hundred thirty-one million, one hundred thirteen thousand, two hundred thirteen".