21013302233 has 8 divisors (see below), whose sum is σ = 26198402880. Its totient is φ = 16374001680.

The previous prime is 21013302227. The next prime is 21013302257. The reversal of 21013302233 is 33220331012.

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

It is a cyclic number.

It is not a de Polignac number, because 21013302233 - 2¹⁰ = 21013301209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21013302223) 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, 136449938 + ... + 136450091.

It is an arithmetic number, because the mean of its divisors is an integer number (3274800360).

Almost surely, 2^21013302233 is an apocalyptic number.

It is an amenable number.

21013302233 is a deficient number, since it is larger than the sum of its proper divisors (5185100647).

21013302233 is a wasteful number, since it uses less digits than its factorization.

21013302233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272900047.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 21013302233 its reverse (33220331012), we get a palindrome (54233633245).

The spelling of 21013302233 in words is "twenty-one billion, thirteen million, three hundred two thousand, two hundred thirty-three".