2141344421 has 4 divisors (see below), whose sum is σ = 2150695500. Its totient is φ = 2131993344.

The previous prime is 2141344409. The next prime is 2141344423. The reversal of 2141344421 is 1244431412.

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 1148464321 + 992880100 = 33889^2 + 31510^2 .

It is a cyclic number.

It is not a de Polignac number, because 2141344421 - 2²⁶ = 2074235557 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 (2141344423) 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, 4675196 + ... + 4675653.

It is an arithmetic number, because the mean of its divisors is an integer number (537673875).

Almost surely, 2^2141344421 is an apocalyptic number.

It is an amenable number.

2141344421 is a deficient number, since it is larger than the sum of its proper divisors (9351079).

2141344421 is an equidigital number, since it uses as much as digits as its factorization.

2141344421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9351078.

The product of its digits is 3072, while the sum is 26.

The square root of 2141344421 is about 46274.6628404789. The cubic root of 2141344421 is about 1288.9285458438.

Adding to 2141344421 its reverse (1244431412), we get a palindrome (3385775833).

The spelling of 2141344421 in words is "two billion, one hundred forty-one million, three hundred forty-four thousand, four hundred twenty-one".