102240110042 has 24 divisors (see below), whose sum is σ = 178663754196. Its totient is φ = 43752054528.

The previous prime is 102240109991. The next prime is 102240110053. The reversal of 102240110042 is 240011042201.

It can be written as a sum of positive squares in 2 ways, for example, as 98727295681 + 3512814361 = 314209^2 + 59269^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102240110042.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 709133 + ... + 841040.

Almost surely, 2^102240110042 is an apocalyptic number.

102240110042 is a deficient number, since it is larger than the sum of its proper divisors (76423644154).

102240110042 is a wasteful number, since it uses less digits than its factorization.

102240110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550862 (or 1550855 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 102240110042 its reverse (240011042201), we get a palindrome (342251152243).

The spelling of 102240110042 in words is "one hundred two billion, two hundred forty million, one hundred ten thousand, forty-two".