2141310421 has 4 divisors (see below), whose sum is σ = 2141610700. Its totient is φ = 2141010144.

The previous prime is 2141310401. The next prime is 2141310433. The reversal of 2141310421 is 1240131412.

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 1666680625 + 474629796 = 40825^2 + 21786^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141310421 - 2⁹ = 2141309909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2141310401) 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, 139176 + ... + 153793.

It is an arithmetic number, because the mean of its divisors is an integer number (535402675).

Almost surely, 2^2141310421 is an apocalyptic number.

It is an amenable number.

2141310421 is a deficient number, since it is larger than the sum of its proper divisors (300279).

2141310421 is an equidigital number, since it uses as much as digits as its factorization.

2141310421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 300278.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2141310421 is about 46274.2954673542. The cubic root of 2141310421 is about 1288.9217239920.

Adding to 2141310421 its reverse (1240131412), we get a palindrome (3381441833).

The spelling of 2141310421 in words is "two billion, one hundred forty-one million, three hundred ten thousand, four hundred twenty-one".