2140201321 has 4 divisors (see below), whose sum is σ = 2180582532. Its totient is φ = 2099820112.

The previous prime is 2140201303. The next prime is 2140201331. The reversal of 2140201321 is 1231020412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1755610000 + 384591321 = 41900^2 + 19611^2 .

It is a cyclic number.

It is not a de Polignac number, because 2140201321 - 2²¹ = 2138104169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2140201295 and 2140201304.

It is not an unprimeable number, because it can be changed into a prime (2140201331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20190526 + ... + 20190631.

It is an arithmetic number, because the mean of its divisors is an integer number (545145633).

Almost surely, 2^2140201321 is an apocalyptic number.

It is an amenable number.

2140201321 is a deficient number, since it is larger than the sum of its proper divisors (40381211).

2140201321 is an equidigital number, since it uses as much as digits as its factorization.

2140201321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40381210.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2140201321 is about 46262.3099401662. The cubic root of 2140201321 is about 1288.6991515657.

Adding to 2140201321 its reverse (1231020412), we get a palindrome (3371221733).

The spelling of 2140201321 in words is "two billion, one hundred forty million, two hundred one thousand, three hundred twenty-one".