2001232901 has 8 divisors (see below), whose sum is σ = 2018385600. Its totient is φ = 1984119840.

The previous prime is 2001232889. The next prime is 2001232913. The reversal of 2001232901 is 1092321002.

It is an interprime number because it is at equal distance from previous prime (2001232889) and next prime (2001232913).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2001232901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001232991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96320 + ... + 115238.

It is an arithmetic number, because the mean of its divisors is an integer number (252298200).

Almost surely, 2^2001232901 is an apocalyptic number.

It is an amenable number.

2001232901 is a deficient number, since it is larger than the sum of its proper divisors (17152699).

2001232901 is a wasteful number, since it uses less digits than its factorization.

2001232901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19819.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 2001232901 is about 44735.1416785507. The cubic root of 2001232901 is about 1260.1798897019.

Adding to 2001232901 its reverse (1092321002), we get a palindrome (3093553903).

The spelling of 2001232901 in words is "two billion, one million, two hundred thirty-two thousand, nine hundred one".