2001331131 has 8 divisors (see below), whose sum is σ = 2784460800. Its totient is φ = 1276211112.

The previous prime is 2001331121. The next prime is 2001331133. The reversal of 2001331131 is 1311331002.

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

It is not a de Polignac number, because 2001331131 - 2⁵ = 2001331099 is a prime.

It is a super-2 number, since 2×2001331131² = 8010652591819478322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2001331131.

It is not an unprimeable number, because it can be changed into a prime (2001331133) 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, 14502331 + ... + 14502468.

It is an arithmetic number, because the mean of its divisors is an integer number (348057600).

Almost surely, 2^2001331131 is an apocalyptic number.

2001331131 is a deficient number, since it is larger than the sum of its proper divisors (783129669).

2001331131 is a wasteful number, since it uses less digits than its factorization.

2001331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29004825.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 2001331131 is about 44736.2395715152. The cubic root of 2001331131 is about 1260.2005078993.

Adding to 2001331131 its reverse (1311331002), we get a palindrome (3312662133).

It can be divided in two parts, 200 and 1331131, that added together give a palindrome (1331331).

The spelling of 2001331131 in words is "two billion, one million, three hundred thirty-one thousand, one hundred thirty-one".