2001353430203 has 4 divisors (see below), whose sum is σ = 2004821980920. Its totient is φ = 1997884879488.

The previous prime is 2001353430179. The next prime is 2001353430257. The reversal of 2001353430203 is 3020343531002.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001353430203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001353490203) 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, 1734274493 + ... + 1734275646.

It is an arithmetic number, because the mean of its divisors is an integer number (501205495230).

Almost surely, 2^{2001353430203} is an apocalyptic number.

2001353430203 is a deficient number, since it is larger than the sum of its proper divisors (3468550717).

2001353430203 is an equidigital number, since it uses as much as digits as its factorization.

2001353430203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3468550716.

The product of its (nonzero) digits is 6480, while the sum is 26.

Adding to 2001353430203 its reverse (3020343531002), we get a palindrome (5021696961205).

The spelling of 2001353430203 in words is "two trillion, one billion, three hundred fifty-three million, four hundred thirty thousand, two hundred three".