20321133233 has 8 divisors (see below), whose sum is σ = 20673612960. Its totient is φ = 19968922080.

The previous prime is 20321133211. The next prime is 20321133263. The reversal of 20321133233 is 33233112302.

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 20321133233 - 2⁶ = 20321133169 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20321133199 and 20321133208.

It is not an unprimeable number, because it can be changed into a prime (20321133263) 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, 88598 + ... + 220208.

It is an arithmetic number, because the mean of its divisors is an integer number (2584201620).

Almost surely, 2^20321133233 is an apocalyptic number.

It is an amenable number.

20321133233 is a deficient number, since it is larger than the sum of its proper divisors (352479727).

20321133233 is a wasteful number, since it uses less digits than its factorization.

20321133233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134287.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20321133233 its reverse (33233112302), we get a palindrome (53554245535).

The spelling of 20321133233 in words is "twenty billion, three hundred twenty-one million, one hundred thirty-three thousand, two hundred thirty-three".