1321003303001 has 8 divisors (see below), whose sum is σ = 1356748739904. Its totient is φ = 1285260110640.

The previous prime is 1321003302959. The next prime is 1321003303007. The reversal of 1321003303001 is 1003033001231.

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 1321003303001 - 2⁶ = 1321003302937 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1321003303007) 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, 667796 + ... + 1757258.

It is an arithmetic number, because the mean of its divisors is an integer number (169593592488).

Almost surely, 2^{1321003303001} is an apocalyptic number.

It is an amenable number.

1321003303001 is a deficient number, since it is larger than the sum of its proper divisors (35745436903).

1321003303001 is a wasteful number, since it uses less digits than its factorization.

1321003303001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1122271.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 1321003303001 its reverse (1003033001231), we get a palindrome (2324036304232).

The spelling of 1321003303001 in words is "one trillion, three hundred twenty-one billion, three million, three hundred three thousand, one".