111100819 has 2 divisors, whose sum is σ = 111100820. Its totient is φ = 111100818.

The previous prime is 111100811. The next prime is 111100841. The reversal of 111100819 is 918001111.

It is an a-pointer prime, because the next prime (111100841) can be obtained adding 111100819 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111100819 - 2³ = 111100811 is a prime.

It is a super-2 number, since 2×111100819² = 24686783964941522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 111100819.

It is not a weakly prime, because it can be changed into another prime (111100811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550409 + 55550410.

It is an arithmetic number, because the mean of its divisors is an integer number (55550410).

Almost surely, 2^111100819 is an apocalyptic number.

111100819 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100819 is an equidigital number, since it uses as much as digits as its factorization.

111100819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 22.

The square root of 111100819 is about 10540.4373248931. The cubic root of 111100819 is about 480.7350125180.

The spelling of 111100819 in words is "one hundred eleven million, one hundred thousand, eight hundred nineteen".