21334004024 has 16 divisors (see below), whose sum is σ = 40007714400. Its totient is φ = 10665280192.

The previous prime is 21334003997. The next prime is 21334004071. The reversal of 21334004024 is 42040043312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161789 + ... + 262380.

It is an arithmetic number, because the mean of its divisors is an integer number (2500482150).

Almost surely, 2^21334004024 is an apocalyptic number.

It is an amenable number.

21334004024 is a deficient number, since it is larger than the sum of its proper divisors (18673710376).

21334004024 is a wasteful number, since it uses less digits than its factorization.

21334004024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430462 (or 430458 counting only the distinct ones).

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

Adding to 21334004024 its reverse (42040043312), we get a palindrome (63374047336).

The spelling of 21334004024 in words is "twenty-one billion, three hundred thirty-four million, four thousand, twenty-four".