21033303023204 has 72 divisors (see below), whose sum is σ = 39488498038080. Its totient is φ = 9799931441664.

The previous prime is 21033303023203. The next prime is 21033303023269. The reversal of 21033303023204 is 40232030333012.

It is not an unprimeable number, because it can be changed into a prime (21033303023203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 698556902 + ... + 698587010.

It is an arithmetic number, because the mean of its divisors is an integer number (548451361640).

Almost surely, 2^{21033303023204} is an apocalyptic number.

It is an amenable number.

21033303023204 is a deficient number, since it is larger than the sum of its proper divisors (18455195014876).

21033303023204 is a wasteful number, since it uses less digits than its factorization.

21033303023204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36117 (or 36098 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 26.

Adding to 21033303023204 its reverse (40232030333012), we get a palindrome (61265333356216).

The spelling of 21033303023204 in words is "twenty-one trillion, thirty-three billion, three hundred three million, twenty-three thousand, two hundred four".