2421340231 has 4 divisors (see below), whose sum is σ = 2421721000. Its totient is φ = 2420959464.

The previous prime is 2421340213. The next prime is 2421340237. The reversal of 2421340231 is 1320431242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2421340231 - 2⁹ = 2421339719 is a prime.

It is a super-2 number, since 2×2421340231² = 11725777028518266722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2421340237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180681 + ... + 193618.

It is an arithmetic number, because the mean of its divisors is an integer number (605430250).

Almost surely, 2^2421340231 is an apocalyptic number.

2421340231 is a deficient number, since it is larger than the sum of its proper divisors (380769).

2421340231 is an equidigital number, since it uses as much as digits as its factorization.

2421340231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380768.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2421340231 is about 49207.1156541409. The cubic root of 2421340231 is about 1342.8224889379.

Adding to 2421340231 its reverse (1320431242), we get a palindrome (3741771473).

The spelling of 2421340231 in words is "two billion, four hundred twenty-one million, three hundred forty thousand, two hundred thirty-one".