102202142191 has 2 divisors, whose sum is σ = 102202142192. Its totient is φ = 102202142190.

The previous prime is 102202142153. The next prime is 102202142201. The reversal of 102202142191 is 191241202201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102202142191 - 2¹¹ = 102202140143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102202142111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51101071095 + 51101071096.

It is an arithmetic number, because the mean of its divisors is an integer number (51101071096).

Almost surely, 2^102202142191 is an apocalyptic number.

102202142191 is a deficient number, since it is larger than the sum of its proper divisors (1).

102202142191 is an equidigital number, since it uses as much as digits as its factorization.

102202142191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

Adding to 102202142191 its reverse (191241202201), we get a palindrome (293443344392).

The spelling of 102202142191 in words is "one hundred two billion, two hundred two million, one hundred forty-two thousand, one hundred ninety-one".