1321304250203 has 8 divisors (see below), whose sum is σ = 1512417796320. Its totient is φ = 1130779653120.

The previous prime is 1321304250181. The next prime is 1321304250209. The reversal of 1321304250203 is 3020524031231.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1321304250203 - 2²⁶ = 1321237141339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321304250209) 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, 147232448 + ... + 147241421.

It is an arithmetic number, because the mean of its divisors is an integer number (189052224540).

Almost surely, 2^{1321304250203} is an apocalyptic number.

1321304250203 is a deficient number, since it is larger than the sum of its proper divisors (191113546117).

1321304250203 is an equidigital number, since it uses as much as digits as its factorization.

1321304250203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294474517.

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 1321304250203 its reverse (3020524031231), we get a palindrome (4341828281434).

The spelling of 1321304250203 in words is "one trillion, three hundred twenty-one billion, three hundred four million, two hundred fifty thousand, two hundred three".