33132113021 has 4 divisors (see below), whose sum is σ = 37865272032. Its totient is φ = 28398954012.

The previous prime is 33132112969. The next prime is 33132113033. The reversal of 33132113021 is 12031123133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33132113021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33132112984 and 33132113002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33132113041) 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, 2366579495 + ... + 2366579508.

It is an arithmetic number, because the mean of its divisors is an integer number (9466318008).

Almost surely, 2^33132113021 is an apocalyptic number.

It is an amenable number.

33132113021 is a deficient number, since it is larger than the sum of its proper divisors (4733159011).

33132113021 is an equidigital number, since it uses as much as digits as its factorization.

33132113021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4733159010.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 33132113021 its reverse (12031123133), we get a palindrome (45163236154).

The spelling of 33132113021 in words is "thirty-three billion, one hundred thirty-two million, one hundred thirteen thousand, twenty-one".