111213131999 has 8 divisors (see below), whose sum is σ = 112571529840. Its totient is φ = 109855174336.

The previous prime is 111213131983. The next prime is 111213132007. The reversal of 111213131999 is 999131312111.

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 111213131999 - 2⁴ = 111213131983 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 (111213131899) 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, 413459 + ... + 627195.

It is an arithmetic number, because the mean of its divisors is an integer number (14071441230).

Almost surely, 2^111213131999 is an apocalyptic number.

111213131999 is a deficient number, since it is larger than the sum of its proper divisors (1358397841).

111213131999 is an equidigital number, since it uses as much as digits as its factorization.

111213131999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220089.

The product of its digits is 13122, while the sum is 41.

The spelling of 111213131999 in words is "one hundred eleven billion, two hundred thirteen million, one hundred thirty-one thousand, nine hundred ninety-nine".