21333010203 has 8 divisors (see below), whose sum is σ = 31604459600. Its totient is φ = 14222006784.

The previous prime is 21333010157. The next prime is 21333010253. The reversal of 21333010203 is 30201033312.

It is not a de Polignac number, because 21333010203 - 2²² = 21328815899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333010253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 395055718 + ... + 395055771.

It is an arithmetic number, because the mean of its divisors is an integer number (3950557450).

Almost surely, 2^21333010203 is an apocalyptic number.

21333010203 is a deficient number, since it is larger than the sum of its proper divisors (10271449397).

21333010203 is an equidigital number, since it uses as much as digits as its factorization.

21333010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 790111498 (or 790111492 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 21333010203 its reverse (30201033312), we get a palindrome (51534043515).

The spelling of 21333010203 in words is "twenty-one billion, three hundred thirty-three million, ten thousand, two hundred three".