1213313121296 has 20 divisors (see below), whose sum is σ = 2350935531984. Its totient is φ = 606620080800.

The previous prime is 1213313121259. The next prime is 1213313121323. The reversal of 1213313121296 is 6921213133121.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2004590 + ... + 2538701.

Almost surely, 2^{1213313121296} is an apocalyptic number.

1213313121296 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1213313121296 is a deficient number, since it is larger than the sum of its proper divisors (1137622410688).

1213313121296 is a wasteful number, since it uses less digits than its factorization.

1213313121296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4559990 (or 4559984 counting only the distinct ones).

The product of its digits is 11664, while the sum is 35.

The spelling of 1213313121296 in words is "one trillion, two hundred thirteen billion, three hundred thirteen million, one hundred twenty-one thousand, two hundred ninety-six".