1320203031001 has 4 divisors (see below), whose sum is σ = 1320212075472. Its totient is φ = 1320193986532.

The previous prime is 1320203030983. The next prime is 1320203031041. The reversal of 1320203031001 is 1001303020231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1320203031001 - 2²⁵ = 1320169476569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320203031041) 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, 4299631 + ... + 4596436.

It is an arithmetic number, because the mean of its divisors is an integer number (330053018868).

Almost surely, 2^{1320203031001} is an apocalyptic number.

It is an amenable number.

1320203031001 is a deficient number, since it is larger than the sum of its proper divisors (9044471).

1320203031001 is an equidigital number, since it uses as much as digits as its factorization.

1320203031001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9044470.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 1320203031001 its reverse (1001303020231), we get a palindrome (2321506051232).

The spelling of 1320203031001 in words is "one trillion, three hundred twenty billion, two hundred three million, thirty-one thousand, one".