102240511144 has 16 divisors (see below), whose sum is σ = 195317958420. Its totient is φ = 50155722240.

The previous prime is 102240511103. The next prime is 102240511147. The reversal of 102240511144 is 441115042201.

It can be written as a sum of positive squares in 2 ways, for example, as 102232388644 + 8122500 = 319738^2 + 2850^2 .

It is not an unprimeable number, because it can be changed into a prime (102240511147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 120566217 + ... + 120567064.

Almost surely, 2^102240511144 is an apocalyptic number.

It is an amenable number.

102240511144 is a deficient number, since it is larger than the sum of its proper divisors (93077447276).

102240511144 is a wasteful number, since it uses less digits than its factorization.

102240511144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 241133340 (or 241133336 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 25.

Adding to 102240511144 its reverse (441115042201), we get a palindrome (543355553345).

The spelling of 102240511144 in words is "one hundred two billion, two hundred forty million, five hundred eleven thousand, one hundred forty-four".