21032033233 has 2 divisors, whose sum is σ = 21032033234. Its totient is φ = 21032033232.

The previous prime is 21032033219. The next prime is 21032033249. The reversal of 21032033233 is 33233023012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19942241089 + 1089792144 = 141217^2 + 33012^2 .

It is a cyclic number.

It is not a de Polignac number, because 21032033233 - 2¹³ = 21032025041 is a prime.

It is a super-3 number, since 3×21032033233³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (21032033213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10516016616 + 10516016617.

It is an arithmetic number, because the mean of its divisors is an integer number (10516016617).

Almost surely, 2^21032033233 is an apocalyptic number.

It is an amenable number.

21032033233 is a deficient number, since it is larger than the sum of its proper divisors (1).

21032033233 is an equidigital number, since it uses as much as digits as its factorization.

21032033233 is an evil number, because the sum of its binary digits is even.

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

Adding to 21032033233 its reverse (33233023012), we get a palindrome (54265056245).

The spelling of 21032033233 in words is "twenty-one billion, thirty-two million, thirty-three thousand, two hundred thirty-three".