111100031219 has 16 divisors (see below), whose sum is σ = 115347776544. Its totient is φ = 106929312000.

The previous prime is 111100031213. The next prime is 111100031257. The reversal of 111100031219 is 912130001111.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-111100031219 is a prime.

It is a super-2 number, since 2×111100031219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111100031219.

It is not an unprimeable number, because it can be changed into a prime (111100031213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362217 + ... + 2408789.

It is an arithmetic number, because the mean of its divisors is an integer number (7209236034).

Almost surely, 2^111100031219 is an apocalyptic number.

111100031219 is a deficient number, since it is larger than the sum of its proper divisors (4247745325).

111100031219 is an equidigital number, since it uses as much as digits as its factorization.

111100031219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47398.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 111100031219 in words is "one hundred eleven billion, one hundred million, thirty-one thousand, two hundred nineteen".