2331200421 has 24 divisors (see below), whose sum is σ = 3866747040. Its totient is φ = 1338487200.

The previous prime is 2331200419. The next prime is 2331200437. The reversal of 2331200421 is 1240021332.

2331200421 is a `hidden beast` number, since 233 + 12 + 0 + 0 + 421 = 666.

It is not a de Polignac number, because 2331200421 - 2¹ = 2331200419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2331200394 and 2331200403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2331200441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 617790 + ... + 621551.

It is an arithmetic number, because the mean of its divisors is an integer number (161114460).

Almost surely, 2^2331200421 is an apocalyptic number.

It is an amenable number.

2331200421 is a deficient number, since it is larger than the sum of its proper divisors (1535546619).

2331200421 is a wasteful number, since it uses less digits than its factorization.

2331200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1239377 (or 1239374 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2331200421 is about 48282.5063661778. The cubic root of 2331200421 is about 1325.9481375128.

Adding to 2331200421 its reverse (1240021332), we get a palindrome (3571221753).

Subtracting from 2331200421 its reverse (1240021332), we obtain a square (1091179089 = 33033²).

The spelling of 2331200421 in words is "two billion, three hundred thirty-one million, two hundred thousand, four hundred twenty-one".