1321130322003 has 32 divisors (see below), whose sum is σ = 1813586584576. Its totient is φ = 854833004928.

The previous prime is 1321130321983. The next prime is 1321130322013. The reversal of 1321130322003 is 3002230311231.

It is not a de Polignac number, because 1321130322003 - 2¹⁴ = 1321130305619 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321130322013) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 208278450 + ... + 208284792.

It is an arithmetic number, because the mean of its divisors is an integer number (56674580768).

Almost surely, 2^{1321130322003} is an apocalyptic number.

1321130322003 is a deficient number, since it is larger than the sum of its proper divisors (492456262573).

1321130322003 is a wasteful number, since it uses less digits than its factorization.

1321130322003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10723.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 1321130322003 its reverse (3002230311231), we get a palindrome (4323360633234).

The spelling of 1321130322003 in words is "one trillion, three hundred twenty-one billion, one hundred thirty million, three hundred twenty-two thousand, three".