2140211321 has 4 divisors (see below), whose sum is σ = 2156548944. Its totient is φ = 2123873700.

The previous prime is 2140211309. The next prime is 2140211323. The reversal of 2140211321 is 1231120412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2140211321 - 2¹⁸ = 2139949177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2140211321.

It is not an unprimeable number, because it can be changed into a prime (2140211323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8168615 + ... + 8168876.

It is an arithmetic number, because the mean of its divisors is an integer number (539137236).

Almost surely, 2^2140211321 is an apocalyptic number.

It is an amenable number.

2140211321 is a deficient number, since it is larger than the sum of its proper divisors (16337623).

2140211321 is a wasteful number, since it uses less digits than its factorization.

2140211321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16337622.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 2140211321 is about 46262.4180193816. The cubic root of 2140211321 is about 1288.7011586933.

Adding to 2140211321 its reverse (1231120412), we get a palindrome (3371331733).

Subtracting from 2140211321 its reverse (1231120412), we obtain a palindrome (909090909).

It can be divided in two parts, 21402 and 11321, that added together give a palindrome (32723).

The spelling of 2140211321 in words is "two billion, one hundred forty million, two hundred eleven thousand, three hundred twenty-one".