21233042024 has 16 divisors (see below), whose sum is σ = 42153833700. Its totient is φ = 9992019712.

The previous prime is 21233042023. The next prime is 21233042053. The reversal of 21233042024 is 42024033212.

It can be written as a sum of positive squares in 2 ways, for example, as 21223245124 + 9796900 = 145682^2 + 3130^2 .

It is not an unprimeable number, because it can be changed into a prime (21233042021) 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, 78062519 + ... + 78062790.

Almost surely, 2^21233042024 is an apocalyptic number.

It is an amenable number.

21233042024 is a deficient number, since it is larger than the sum of its proper divisors (20920791676).

21233042024 is a wasteful number, since it uses less digits than its factorization.

21233042024 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156125332 (or 156125328 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 21233042024 its reverse (42024033212), we get a palindrome (63257075236).

The spelling of 21233042024 in words is "twenty-one billion, two hundred thirty-three million, forty-two thousand, twenty-four".