21301003233 has 12 divisors (see below), whose sum is σ = 30770113920. Its totient is φ = 14199746616.

The previous prime is 21301003177. The next prime is 21301003253. The reversal of 21301003233 is 33230010312.

It is not a de Polignac number, because 21301003233 - 2¹⁸ = 21300741089 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21301003253) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 88060 + ... + 224402.

It is an arithmetic number, because the mean of its divisors is an integer number (2564176160).

Almost surely, 2^21301003233 is an apocalyptic number.

It is an amenable number.

21301003233 is a deficient number, since it is larger than the sum of its proper divisors (9469110687).

21301003233 is a wasteful number, since it uses less digits than its factorization.

21301003233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153708 (or 153705 counting only the distinct ones).

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

Adding to 21301003233 its reverse (33230010312), we get a palindrome (54531013545).

The spelling of 21301003233 in words is "twenty-one billion, three hundred one million, three thousand, two hundred thirty-three".