32133121021 has 4 divisors (see below), whose sum is σ = 33169673344. Its totient is φ = 31096568700.

The previous prime is 32133121001. The next prime is 32133121049. The reversal of 32133121021 is 12012133123.

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 not a de Polignac number, because 32133121021 - 2²⁵ = 32099566589 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32133121021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32133121001) 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, 518276115 + ... + 518276176.

It is an arithmetic number, because the mean of its divisors is an integer number (8292418336).

Almost surely, 2^32133121021 is an apocalyptic number.

32133121021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

32133121021 is a deficient number, since it is larger than the sum of its proper divisors (1036552323).

32133121021 is a wasteful number, since it uses less digits than its factorization.

32133121021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1036552322.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 32133121021 its reverse (12012133123), we get a palindrome (44145254144).

The spelling of 32133121021 in words is "thirty-two billion, one hundred thirty-three million, one hundred twenty-one thousand, twenty-one".