2321422421 has 4 divisors (see below), whose sum is σ = 2401471500. Its totient is φ = 2241373344.

The previous prime is 2321422417. The next prime is 2321422423. The reversal of 2321422421 is 1242241232.

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 1782021796 + 539400625 = 42214^2 + 23225^2 .

It is not a de Polignac number, because 2321422421 - 2² = 2321422417 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 (2321422423) 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, 40024496 + ... + 40024553.

It is an arithmetic number, because the mean of its divisors is an integer number (600367875).

Almost surely, 2^2321422421 is an apocalyptic number.

It is an amenable number.

2321422421 is a deficient number, since it is larger than the sum of its proper divisors (80049079).

2321422421 is an equidigital number, since it uses as much as digits as its factorization.

2321422421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80049078.

The product of its digits is 1536, while the sum is 23.

The square root of 2321422421 is about 48181.1417569156. The cubic root of 2321422421 is about 1324.0916847712.

Adding to 2321422421 its reverse (1242241232), we get a palindrome (3563663653).

The spelling of 2321422421 in words is "two billion, three hundred twenty-one million, four hundred twenty-two thousand, four hundred twenty-one".