23100102191 has 2 divisors, whose sum is σ = 23100102192. Its totient is φ = 23100102190.

The previous prime is 23100102119. The next prime is 23100102209. The reversal of 23100102191 is 19120100132.

Together with previous prime (23100102119) 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 not a de Polignac number, because 23100102191 - 2¹⁸ = 23099840047 is a prime.

It is a super-2 number, since 2×23100102191² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23100102691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550051095 + 11550051096.

It is an arithmetic number, because the mean of its divisors is an integer number (11550051096).

Almost surely, 2^23100102191 is an apocalyptic number.

23100102191 is a deficient number, since it is larger than the sum of its proper divisors (1).

23100102191 is an equidigital number, since it uses as much as digits as its factorization.

23100102191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 23100102191 in words is "twenty-three billion, one hundred million, one hundred two thousand, one hundred ninety-one".