21233311201033 has 4 divisors (see below), whose sum is σ = 21341094506820. Its totient is φ = 21125527895248.

The previous prime is 21233311201021. The next prime is 21233311201043. The reversal of 21233311201033 is 33010211333212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20024076679929 + 1209234521104 = 4474827^2 + 1099652^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21233311201033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21233311200989 and 21233311201007.

It is not an unprimeable number, because it can be changed into a prime (21233311201043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 53891652598 + ... + 53891652991.

It is an arithmetic number, because the mean of its divisors is an integer number (5335273626705).

Almost surely, 2^{21233311201033} is an apocalyptic number.

It is an amenable number.

21233311201033 is a deficient number, since it is larger than the sum of its proper divisors (107783305787).

21233311201033 is a wasteful number, since it uses less digits than its factorization.

21233311201033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107783305786.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21233311201033 its reverse (33010211333212), we get a palindrome (54243522534245).

The spelling of 21233311201033 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred eleven million, two hundred one thousand, thirty-three".