1311421996 has 6 divisors (see below), whose sum is σ = 2294988500. Its totient is φ = 655710996.

The previous prime is 1311421967. The next prime is 1311421997. The reversal of 1311421996 is 6991241131.

It is not an unprimeable number, because it can be changed into a prime (1311421997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163927746 + ... + 163927753.

Almost surely, 2^1311421996 is an apocalyptic number.

It is an amenable number.

1311421996 is a deficient number, since it is larger than the sum of its proper divisors (983566504).

1311421996 is a wasteful number, since it uses less digits than its factorization.

1311421996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327855503 (or 327855501 counting only the distinct ones).

The product of its digits is 11664, while the sum is 37.

The square root of 1311421996 is about 36213.5609406200. The cubic root of 1311421996 is about 1094.5799480013.

The spelling of 1311421996 in words is "one billion, three hundred eleven million, four hundred twenty-one thousand, nine hundred ninety-six".