2110321421 has 6 divisors (see below), whose sum is σ = 2285141130. Its totient is φ = 1947988848.

The previous prime is 2110321403. The next prime is 2110321459. The reversal of 2110321421 is 1241230112.

It can be written as a sum of positive squares in 3 ways, for example, as 97812100 + 2012509321 = 9890^2 + 44861^2 .

It is not a de Polignac number, because 2110321421 - 2¹⁴ = 2110305037 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 2110321421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2110321471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6243386 + ... + 6243723.

It is an arithmetic number, because the mean of its divisors is an integer number (380856855).

Almost surely, 2^2110321421 is an apocalyptic number.

It is an amenable number.

2110321421 is a deficient number, since it is larger than the sum of its proper divisors (174819709).

2110321421 is a wasteful number, since it uses less digits than its factorization.

2110321421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12487135 (or 12487122 counting only the distinct ones).

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

The square root of 2110321421 is about 45938.2348485442. The cubic root of 2110321421 is about 1282.6737366200.

Adding to 2110321421 its reverse (1241230112), we get a palindrome (3351551533).

It can be divided in two parts, 21103 and 21421, that added together give a palindrome (42524).

The spelling of 2110321421 in words is "two billion, one hundred ten million, three hundred twenty-one thousand, four hundred twenty-one".