1218273875102 has 4 divisors (see below), whose sum is σ = 1827410812656. Its totient is φ = 609136937550.

The previous prime is 1218273875099. The next prime is 1218273875171. The reversal of 1218273875102 is 2015783728121.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 304568468774 + ... + 304568468777.

It is an arithmetic number, because the mean of its divisors is an integer number (456852703164).

Almost surely, 2^{1218273875102} is an apocalyptic number.

1218273875102 is a deficient number, since it is larger than the sum of its proper divisors (609136937554).

1218273875102 is an equidigital number, since it uses as much as digits as its factorization.

1218273875102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609136937553.

The product of its (nonzero) digits is 376320, while the sum is 47.

The spelling of 1218273875102 in words is "one trillion, two hundred eighteen billion, two hundred seventy-three million, eight hundred seventy-five thousand, one hundred two".