2001131403321 has 8 divisors (see below), whose sum is σ = 2760181246080. Its totient is φ = 1288084581392.

The previous prime is 2001131403289. The next prime is 2001131403343. The reversal of 2001131403321 is 1233041311002.

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 2001131403321 - 2⁵ = 2001131403289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2001131403121) 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, 11500755105 + ... + 11500755278.

It is an arithmetic number, because the mean of its divisors is an integer number (345022655760).

Almost surely, 2^{2001131403321} is an apocalyptic number.

It is an amenable number.

2001131403321 is a deficient number, since it is larger than the sum of its proper divisors (759049842759).

2001131403321 is a wasteful number, since it uses less digits than its factorization.

2001131403321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23001510415.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2001131403321 its reverse (1233041311002), we get a palindrome (3234172714323).

The spelling of 2001131403321 in words is "two trillion, one billion, one hundred thirty-one million, four hundred three thousand, three hundred twenty-one".