2321132421 has 16 divisors (see below), whose sum is σ = 3204077760. Its totient is φ = 1492888320.

The previous prime is 2321132419. The next prime is 2321132441. The reversal of 2321132421 is 1242311232.

It is not a de Polignac number, because 2321132421 - 2¹ = 2321132419 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2321132441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108606 + ... + 128208.

It is an arithmetic number, because the mean of its divisors is an integer number (200254860).

Almost surely, 2^2321132421 is an apocalyptic number.

It is an amenable number.

2321132421 is a deficient number, since it is larger than the sum of its proper divisors (882945339).

2321132421 is a wasteful number, since it uses less digits than its factorization.

2321132421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20996.

The product of its digits is 576, while the sum is 21.

The square root of 2321132421 is about 48178.1321867089. The cubic root of 2321132421 is about 1324.0365457932.

Adding to 2321132421 its reverse (1242311232), we get a palindrome (3563443653).

The spelling of 2321132421 in words is "two billion, three hundred twenty-one million, one hundred thirty-two thousand, four hundred twenty-one".