2001321014 has 24 divisors (see below), whose sum is σ = 3809566728. Its totient is φ = 779735040.

The previous prime is 2001320989. The next prime is 2001321019. The reversal of 2001321014 is 4101231002.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 2001321014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001321019) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 927179 + ... + 929334.

It is an arithmetic number, because the mean of its divisors is an integer number (158731947).

Almost surely, 2^2001321014 is an apocalyptic number.

2001321014 is a deficient number, since it is larger than the sum of its proper divisors (1808245714).

2001321014 is a wasteful number, since it uses less digits than its factorization.

2001321014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1856540 (or 1856533 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2001321014 is about 44736.1264974964. The cubic root of 2001321014 is about 1260.1983844010.

Adding to 2001321014 its reverse (4101231002), we get a palindrome (6102552016).

The spelling of 2001321014 in words is "two billion, one million, three hundred twenty-one thousand, fourteen".