102323191 has 2 divisors, whose sum is σ = 102323192. Its totient is φ = 102323190.

The previous prime is 102323173. The next prime is 102323197. The reversal of 102323191 is 191323201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102323191 - 2¹¹ = 102321143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102323197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51161595 + 51161596.

It is an arithmetic number, because the mean of its divisors is an integer number (51161596).

Almost surely, 2^102323191 is an apocalyptic number.

102323191 is a deficient number, since it is larger than the sum of its proper divisors (1).

102323191 is an equidigital number, since it uses as much as digits as its factorization.

102323191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 102323191 is about 10115.4926227050. The cubic root of 102323191 is about 467.7258344390.

Adding to 102323191 its reverse (191323201), we get a palindrome (293646392).

The spelling of 102323191 in words is "one hundred two million, three hundred twenty-three thousand, one hundred ninety-one".