32120121321 has 16 divisors (see below), whose sum is σ = 47626048320. Its totient is φ = 21395106720.

The previous prime is 32120121311. The next prime is 32120121329. The reversal of 32120121321 is 12312102123.

32120121321 is a `hidden beast` number, since 321 + 2 + 0 + 1 + 21 + 321 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-32120121321 is a prime.

It is a super-3 number, since 3×32120121321³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 32120121294 and 32120121303.

It is not an unprimeable number, because it can be changed into a prime (32120121329) 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 15 ways as a sum of consecutive naturals, for example, 476340 + ... + 539573.

It is an arithmetic number, because the mean of its divisors is an integer number (2976628020).

Almost surely, 2^32120121321 is an apocalyptic number.

It is an amenable number.

32120121321 is a deficient number, since it is larger than the sum of its proper divisors (15505926999).

32120121321 is a wasteful number, since it uses less digits than its factorization.

32120121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1017093 (or 1017087 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 32120121321 its reverse (12312102123), we get a palindrome (44432223444).

The spelling of 32120121321 in words is "thirty-two billion, one hundred twenty million, one hundred twenty-one thousand, three hundred twenty-one".