2423320421 has 4 divisors (see below), whose sum is σ = 2423467200. Its totient is φ = 2423173644.

The previous prime is 2423320409. The next prime is 2423320433. The reversal of 2423320421 is 1240233242.

2423320421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1240233242 = 2 ⋅620116621.

It is an interprime number because it is at equal distance from previous prime (2423320409) and next prime (2423320433).

It is a cyclic number.

It is not a de Polignac number, because 2423320421 - 2¹⁰ = 2423319397 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 (2423320481) 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, 44951 + ... + 82868.

It is an arithmetic number, because the mean of its divisors is an integer number (605866800).

Almost surely, 2^2423320421 is an apocalyptic number.

It is an amenable number.

2423320421 is a deficient number, since it is larger than the sum of its proper divisors (146779).

2423320421 is a wasteful number, since it uses less digits than its factorization.

2423320421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146778.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 2423320421 is about 49227.2325141278. The cubic root of 2423320421 is about 1343.1884459256.

Adding to 2423320421 its reverse (1240233242), we get a palindrome (3663553663).

The spelling of 2423320421 in words is "two billion, four hundred twenty-three million, three hundred twenty thousand, four hundred twenty-one".