102240312344 has 8 divisors (see below), whose sum is σ = 191700585660. Its totient is φ = 51120156168.

The previous prime is 102240312257. The next prime is 102240312347. The reversal of 102240312344 is 443213042201.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102240312347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6390019514 + ... + 6390019529.

Almost surely, 2^102240312344 is an apocalyptic number.

It is an amenable number.

102240312344 is a deficient number, since it is larger than the sum of its proper divisors (89460273316).

102240312344 is a wasteful number, since it uses less digits than its factorization.

102240312344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12780039049 (or 12780039045 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 102240312344 its reverse (443213042201), we get a palindrome (545453354545).

The spelling of 102240312344 in words is "one hundred two billion, two hundred forty million, three hundred twelve thousand, three hundred forty-four".