21000030000233 has 8 divisors (see below), whose sum is σ = 21204263777760. Its totient is φ = 20795943849120.

The previous prime is 21000030000223. The next prime is 21000030000241. The reversal of 21000030000233 is 33200003000012.

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 21000030000233 - 2²⁸ = 20999761564777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21000030000223) 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, 36620708 + ... + 37189733.

It is an arithmetic number, because the mean of its divisors is an integer number (2650532972220).

Almost surely, 2^{21000030000233} is an apocalyptic number.

It is an amenable number.

21000030000233 is a deficient number, since it is larger than the sum of its proper divisors (204233777527).

21000030000233 is a wasteful number, since it uses less digits than its factorization.

21000030000233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73813207.

The product of its (nonzero) digits is 108, while the sum is 14.

Adding to 21000030000233 its reverse (33200003000012), we get a palindrome (54200033000245).

The spelling of 21000030000233 in words is "twenty-one trillion, thirty million, two hundred thirty-three", and thus it is an aban number.