97100111 has 2 divisors, whose sum is σ = 97100112. Its totient is φ = 97100110.

The previous prime is 97100093. The next prime is 97100117. The reversal of 97100111 is 11100179.

It is a strong prime.

It is an emirp because it is prime and its reverse (11100179) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-97100111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (97100117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48550055 + 48550056.

It is an arithmetic number, because the mean of its divisors is an integer number (48550056).

Almost surely, 2^97100111 is an apocalyptic number.

97100111 is a deficient number, since it is larger than the sum of its proper divisors (1).

97100111 is an equidigital number, since it uses as much as digits as its factorization.

97100111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63, while the sum is 20.

The square root of 97100111 is about 9853.9388571271. The cubic root of 97100111 is about 459.6281036356.

The spelling of 97100111 in words is "ninety-seven million, one hundred thousand, one hundred eleven".