21232033133 has 8 divisors (see below), whose sum is σ = 21310248960. Its totient is φ = 21153881680.

The previous prime is 21232033129. The next prime is 21232033157. The reversal of 21232033133 is 33133023212.

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 21232033133 - 2² = 21232033129 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21232033099 and 21232033108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232033633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 703316 + ... + 732882.

It is an arithmetic number, because the mean of its divisors is an integer number (2663781120).

Almost surely, 2^21232033133 is an apocalyptic number.

It is an amenable number.

21232033133 is a deficient number, since it is larger than the sum of its proper divisors (78215827).

21232033133 is a wasteful number, since it uses less digits than its factorization.

21232033133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32187.

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

Adding to 21232033133 its reverse (33133023212), we get a palindrome (54365056345).

The spelling of 21232033133 in words is "twenty-one billion, two hundred thirty-two million, thirty-three thousand, one hundred thirty-three".