1321441031003 has 4 divisors (see below), whose sum is σ = 1321706759088. Its totient is φ = 1321175302920.

The previous prime is 1321441030969. The next prime is 1321441031017. The reversal of 1321441031003 is 3001301441231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1321441031003 - 2¹⁸ = 1321440768859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321441031003.

It is not an unprimeable number, because it can be changed into a prime (1321441037003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 132856583 + ... + 132866528.

It is an arithmetic number, because the mean of its divisors is an integer number (330426689772).

Almost surely, 2^{1321441031003} is an apocalyptic number.

1321441031003 is a deficient number, since it is larger than the sum of its proper divisors (265728085).

1321441031003 is an equidigital number, since it uses as much as digits as its factorization.

1321441031003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265728084.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1321441031003 its reverse (3001301441231), we get a palindrome (4322742472234).

The spelling of 1321441031003 in words is "one trillion, three hundred twenty-one billion, four hundred forty-one million, thirty-one thousand, three".