1321194814803 has 8 divisors (see below), whose sum is σ = 1957325651600. Its totient is φ = 880796543184.

The previous prime is 1321194814759. The next prime is 1321194814831. The reversal of 1321194814803 is 3084184911231.

1321194814803 is a `hidden beast` number, since 1 + 3 + 2 + 1 + 1 + 94 + 81 + 480 + 3 = 666.

It is not a de Polignac number, because 1321194814803 - 2¹⁶ = 1321194749267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321194814403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24466570618 + ... + 24466570671.

It is an arithmetic number, because the mean of its divisors is an integer number (244665706450).

Almost surely, 2^{1321194814803} is an apocalyptic number.

1321194814803 is a deficient number, since it is larger than the sum of its proper divisors (636130836797).

1321194814803 is an equidigital number, since it uses as much as digits as its factorization.

1321194814803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48933141298 (or 48933141292 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 45.

The spelling of 1321194814803 in words is "one trillion, three hundred twenty-one billion, one hundred ninety-four million, eight hundred fourteen thousand, eight hundred three".