1321747773232 has 20 divisors (see below), whose sum is σ = 2566144819216. Its totient is φ = 659516852160.

The previous prime is 1321747773179. The next prime is 1321747773239. The reversal of 1321747773232 is 2323777471231.

It is not an unprimeable number, because it can be changed into a prime (1321747773239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84806619 + ... + 84822202.

Almost surely, 2^{1321747773232} is an apocalyptic number.

It is an amenable number.

1321747773232 is a deficient number, since it is larger than the sum of its proper divisors (1244397045984).

1321747773232 is a wasteful number, since it uses less digits than its factorization.

1321747773232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169629316 (or 169629310 counting only the distinct ones).

The product of its digits is 2074464, while the sum is 49.

The spelling of 1321747773232 in words is "one trillion, three hundred twenty-one billion, seven hundred forty-seven million, seven hundred seventy-three thousand, two hundred thirty-two".