21301202233 has 8 divisors (see below), whose sum is σ = 22474350720. Its totient is φ = 20133257040.

The previous prime is 21301202227. The next prime is 21301202291. The reversal of 21301202233 is 33220210312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21301202233 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21301202233.

It is not an unprimeable number, because it can be changed into a prime (21301202213) 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 7 ways as a sum of consecutive naturals, for example, 1292410 + ... + 1308787.

It is an arithmetic number, because the mean of its divisors is an integer number (2809293840).

Almost surely, 2^21301202233 is an apocalyptic number.

It is an amenable number.

21301202233 is a deficient number, since it is larger than the sum of its proper divisors (1173148487).

21301202233 is a wasteful number, since it uses less digits than its factorization.

21301202233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601647.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21301202233 its reverse (33220210312), we get a palindrome (54521412545).

The spelling of 21301202233 in words is "twenty-one billion, three hundred one million, two hundred two thousand, two hundred thirty-three".