101090111 has 2 divisors, whose sum is σ = 101090112. Its totient is φ = 101090110.

The previous prime is 101090063. The next prime is 101090123. The reversal of 101090111 is 111090101.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (111090101) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 111060101 and 101060111.

It is a cyclic number.

It is not a de Polignac number, because 101090111 - 2⁶ = 101090047 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101090131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50545055 + 50545056.

It is an arithmetic number, because the mean of its divisors is an integer number (50545056).

Almost surely, 2^101090111 is an apocalyptic number.

101090111 is a deficient number, since it is larger than the sum of its proper divisors (1).

101090111 is an equidigital number, since it uses as much as digits as its factorization.

101090111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9, while the sum is 14.

The square root of 101090111 is about 10054.3578114169. The cubic root of 101090111 is about 465.8394072305.

The spelling of 101090111 in words is "one hundred one million, ninety thousand, one hundred eleven".