100397111 has 2 divisors, whose sum is σ = 100397112. Its totient is φ = 100397110.

The previous prime is 100397107. The next prime is 100397113. The reversal of 100397111 is 111793001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100397111 - 2² = 100397107 is a prime.

Together with 100397113, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100397113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50198555 + 50198556.

It is an arithmetic number, because the mean of its divisors is an integer number (50198556).

Almost surely, 2^100397111 is an apocalyptic number.

100397111 is a deficient number, since it is larger than the sum of its proper divisors (1).

100397111 is an equidigital number, since it uses as much as digits as its factorization.

100397111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 189, while the sum is 23.

The square root of 100397111 is about 10019.8358768994. The cubic root of 100397111 is about 464.7724805171.

The spelling of 100397111 in words is "one hundred million, three hundred ninety-seven thousand, one hundred eleven".