1320202001 has 8 divisors (see below), whose sum is σ = 1384599744. Its totient is φ = 1256387440.

The previous prime is 1320201989. The next prime is 1320202021. The reversal of 1320202001 is 1002020231.

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 1320202001 - 2⁶ = 1320201937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1320202021) 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, 141155 + ... + 150216.

It is an arithmetic number, because the mean of its divisors is an integer number (173074968).

Almost surely, 2^1320202001 is an apocalyptic number.

It is an amenable number.

1320202001 is a deficient number, since it is larger than the sum of its proper divisors (64397743).

1320202001 is a wasteful number, since it uses less digits than its factorization.

1320202001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291591.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1320202001 is about 36334.5840900925. The cubic root of 1320202001 is about 1097.0172640167.

Adding to 1320202001 its reverse (1002020231), we get a palindrome (2322222232).

The spelling of 1320202001 in words is "one billion, three hundred twenty million, two hundred two thousand, one".