21000023332033 has 8 divisors (see below), whose sum is σ = 21152322259040. Its totient is φ = 20847741828480.

The previous prime is 21000023332021. The next prime is 21000023332073. The reversal of 21000023332033 is 33023332000012.

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-21000023332033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21000023331995 and 21000023332013.

It is not an unprimeable number, because it can be changed into a prime (21000023332003) 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, 1931703 + ... + 6762508.

It is an arithmetic number, because the mean of its divisors is an integer number (2644040282380).

Almost surely, 2^{21000023332033} is an apocalyptic number.

It is an amenable number.

21000023332033 is a deficient number, since it is larger than the sum of its proper divisors (152298927007).

21000023332033 is a wasteful number, since it uses less digits than its factorization.

21000023332033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8711727.

The product of its (nonzero) digits is 1944, while the sum is 22.

Adding to 21000023332033 its reverse (33023332000012), we get a palindrome (54023355332045).

The spelling of 21000023332033 in words is "twenty-one trillion, twenty-three million, three hundred thirty-two thousand, thirty-three".