2140334321 has 4 divisors (see below), whose sum is σ = 2140444644. Its totient is φ = 2140224000.

The previous prime is 2140334257. The next prime is 2140334341. The reversal of 2140334321 is 1234330412.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1151923600 + 988410721 = 33940^2 + 31439^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140334321 - 2⁶ = 2140334257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140334341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17480 + ... + 67721.

It is an arithmetic number, because the mean of its divisors is an integer number (535111161).

Almost surely, 2^2140334321 is an apocalyptic number.

It is an amenable number.

2140334321 is a deficient number, since it is larger than the sum of its proper divisors (110323).

2140334321 is an equidigital number, since it uses as much as digits as its factorization.

2140334321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110322.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2140334321 is about 46263.7473730782. The cubic root of 2140334321 is about 1288.7258458515.

Adding to 2140334321 its reverse (1234330412), we get a palindrome (3374664733).

The spelling of 2140334321 in words is "two billion, one hundred forty million, three hundred thirty-four thousand, three hundred twenty-one".