111200200091 has 2 divisors, whose sum is σ = 111200200092. Its totient is φ = 111200200090.

The previous prime is 111200200019. The next prime is 111200200103. The reversal of 111200200091 is 190002002111.

Together with previous prime (111200200019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111200200091 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200209091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600100045 + 55600100046.

It is an arithmetic number, because the mean of its divisors is an integer number (55600100046).

Almost surely, 2^111200200091 is an apocalyptic number.

111200200091 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200200091 is an equidigital number, since it uses as much as digits as its factorization.

111200200091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 111200200091 in words is "one hundred eleven billion, two hundred million, two hundred thousand, ninety-one".