424102321 has 4 divisors (see below), whose sum is σ = 426322944. Its totient is φ = 421881700.

The previous prime is 424102297. The next prime is 424102339. The reversal of 424102321 is 123201424.

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.

It is a cyclic number.

It is not a de Polignac number, because 424102321 - 2⁹ = 424101809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424102381) 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, 1110025 + ... + 1110406.

It is an arithmetic number, because the mean of its divisors is an integer number (106580736).

Almost surely, 2^424102321 is an apocalyptic number.

It is an amenable number.

424102321 is a deficient number, since it is larger than the sum of its proper divisors (2220623).

424102321 is a wasteful number, since it uses less digits than its factorization.

424102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2220622.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 424102321 is about 20593.7447056139. The cubic root of 424102321 is about 751.3175778885.

Adding to 424102321 its reverse (123201424), we get a palindrome (547303745).

The spelling of 424102321 in words is "four hundred twenty-four million, one hundred two thousand, three hundred twenty-one".