203320320401 has 8 divisors (see below), whose sum is σ = 221822725824. Its totient is φ = 184821038320.

The previous prime is 203320320373. The next prime is 203320320407. The reversal of 203320320401 is 104023023302.

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 203320320401 - 2¹⁸ = 203320058257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203320320407) 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, 643670 + ... + 906063.

It is an arithmetic number, because the mean of its divisors is an integer number (27727840728).

Almost surely, 2^203320320401 is an apocalyptic number.

It is an amenable number.

203320320401 is a deficient number, since it is larger than the sum of its proper divisors (18502405423).

203320320401 is a wasteful number, since it uses less digits than its factorization.

203320320401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561671.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 203320320401 its reverse (104023023302), we get a palindrome (307343343703).

The spelling of 203320320401 in words is "two hundred three billion, three hundred twenty million, three hundred twenty thousand, four hundred one".