2001230302331 has 16 divisors (see below), whose sum is σ = 2268682500000. Its totient is φ = 1750000992768.

The previous prime is 2001230302307. The next prime is 2001230302361. The reversal of 2001230302331 is 1332030321002.

It is a cyclic number.

It is not a de Polignac number, because 2001230302331 - 2³⁴ = 1984050433147 is a prime.

It is a super-2 number, since 2×2001230302331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2001230302361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7588865 + ... + 7848141.

It is an arithmetic number, because the mean of its divisors is an integer number (141792656250).

Almost surely, 2^{2001230302331} is an apocalyptic number.

2001230302331 is a deficient number, since it is larger than the sum of its proper divisors (267452197669).

2001230302331 is a wasteful number, since it uses less digits than its factorization.

2001230302331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290558.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 2001230302331 its reverse (1332030321002), we get a palindrome (3333260623333).

The spelling of 2001230302331 in words is "two trillion, one billion, two hundred thirty million, three hundred two thousand, three hundred thirty-one".