32120213121 has 64 divisors (see below), whose sum is σ = 49385306880. Its totient is φ = 20879726400.

The previous prime is 32120213113. The next prime is 32120213149. The reversal of 32120213121 is 12131202123.

It is not a de Polignac number, because 32120213121 - 2³ = 32120213113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32120213094 and 32120213103.

It is not an unprimeable number, because it can be changed into a prime (32120213921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 20979126 + ... + 20980656.

It is an arithmetic number, because the mean of its divisors is an integer number (771645420).

Almost surely, 2^32120213121 is an apocalyptic number.

It is an amenable number.

32120213121 is a deficient number, since it is larger than the sum of its proper divisors (17265093759).

32120213121 is an equidigital number, since it uses as much as digits as its factorization.

32120213121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786 (or 1768 counting only the distinct ones).

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

Adding to 32120213121 its reverse (12131202123), we get a palindrome (44251415244).

The spelling of 32120213121 in words is "thirty-two billion, one hundred twenty million, two hundred thirteen thousand, one hundred twenty-one".