2331504421 has 16 divisors (see below), whose sum is σ = 2527802560. Its totient is φ = 2148862608.

The previous prime is 2331504403. The next prime is 2331504433. The reversal of 2331504421 is 1244051332.

It is not a de Polignac number, because 2331504421 - 2¹¹ = 2331502373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2391504421) 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, 249190 + ... + 258376.

It is an arithmetic number, because the mean of its divisors is an integer number (157987660).

Almost surely, 2^2331504421 is an apocalyptic number.

It is an amenable number.

2331504421 is a deficient number, since it is larger than the sum of its proper divisors (196298139).

2331504421 is an frugal number, since it uses more digits than its factorization.

2331504421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9281 (or 9243 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 2331504421 is about 48285.6544016957. The cubic root of 2331504421 is about 1326.0057717271.

Adding to 2331504421 its reverse (1244051332), we get a palindrome (3575555753).

The spelling of 2331504421 in words is "two billion, three hundred thirty-one million, five hundred four thousand, four hundred twenty-one".