21032223233 has 8 divisors (see below), whose sum is σ = 24865682880. Its totient is φ = 17405977680.

The previous prime is 21032223221. The next prime is 21032223259. The reversal of 21032223233 is 33232223012.

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

It is not a de Polignac number, because 21032223233 - 2⁶ = 21032223169 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 21032223199 and 21032223208.

It is not an unprimeable number, because it can be changed into a prime (21032223263) 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, 51803303 + ... + 51803708.

It is an arithmetic number, because the mean of its divisors is an integer number (3108210360).

Almost surely, 2^21032223233 is an apocalyptic number.

It is an amenable number.

21032223233 is a deficient number, since it is larger than the sum of its proper divisors (3833459647).

21032223233 is a wasteful number, since it uses less digits than its factorization.

21032223233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103607047.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 21032223233 its reverse (33232223012), we get a palindrome (54264446245).

The spelling of 21032223233 in words is "twenty-one billion, thirty-two million, two hundred twenty-three thousand, two hundred thirty-three".