102240010191 has 16 divisors (see below), whose sum is σ = 149351005440. Its totient is φ = 61697699520.

The previous prime is 102240010157. The next prime is 102240010207. The reversal of 102240010191 is 191010042201.

It is a happy number.

It is not a de Polignac number, because 102240010191 - 2⁶ = 102240010127 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102240010291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6640771 + ... + 6656148.

It is an arithmetic number, because the mean of its divisors is an integer number (9334437840).

Almost surely, 2^102240010191 is an apocalyptic number.

102240010191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102240010191 is a deficient number, since it is larger than the sum of its proper divisors (47110995249).

102240010191 is a wasteful number, since it uses less digits than its factorization.

102240010191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13297166.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 102240010191 its reverse (191010042201), we get a palindrome (293250052392).

The spelling of 102240010191 in words is "one hundred two billion, two hundred forty million, ten thousand, one hundred ninety-one".