1121395634512 has 40 divisors (see below), whose sum is σ = 2214340074752. Its totient is φ = 550003132800.

The previous prime is 1121395634483. The next prime is 1121395634561. The reversal of 1121395634512 is 2154365931211.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1207164 + ... + 1923547.

Almost surely, 2^{1121395634512} is an apocalyptic number.

It is an amenable number.

1121395634512 is a deficient number, since it is larger than the sum of its proper divisors (1092944440240).

1121395634512 is a wasteful number, since it uses less digits than its factorization.

1121395634512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3131147 (or 3131141 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The spelling of 1121395634512 in words is "one trillion, one hundred twenty-one billion, three hundred ninety-five million, six hundred thirty-four thousand, five hundred twelve".