101101999 has 2 divisors, whose sum is σ = 101102000. Its totient is φ = 101101998.

The previous prime is 101101993. The next prime is 101102003. The reversal of 101101999 is 999101101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101101999 - 2³ = 101101991 is a prime.

It is a super-2 number, since 2×101101999² = 20443228403592002, 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 101101999.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101101991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50550999 + 50551000.

It is an arithmetic number, because the mean of its divisors is an integer number (50551000).

Almost surely, 2^101101999 is an apocalyptic number.

101101999 is a deficient number, since it is larger than the sum of its proper divisors (1).

101101999 is an equidigital number, since it uses as much as digits as its factorization.

101101999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 31.

The square root of 101101999 is about 10054.9489804772. The cubic root of 101101999 is about 465.8576671169.

The spelling of 101101999 in words is "one hundred one million, one hundred one thousand, nine hundred ninety-nine".