1321333042203 has 6 divisors (see below), whose sum is σ = 1908592172084. Its totient is φ = 880888694796.

The previous prime is 1321333042153. The next prime is 1321333042223. The reversal of 1321333042203 is 3022403331231.

1321333042203 is a `hidden beast` number, since 1 + 3 + 2 + 133 + 304 + 220 + 3 = 666.

It is not a de Polignac number, because 1321333042203 - 2²⁰ = 1321331993627 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321333042223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 73407391225 + ... + 73407391242.

Almost surely, 2^{1321333042203} is an apocalyptic number.

1321333042203 is a deficient number, since it is larger than the sum of its proper divisors (587259129881).

1321333042203 is a wasteful number, since it uses less digits than its factorization.

1321333042203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146814782473 (or 146814782470 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 1321333042203 its reverse (3022403331231), we get a palindrome (4343736373434).

The spelling of 1321333042203 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-three million, forty-two thousand, two hundred three".