32121133020 has 144 divisors (see below), whose sum is σ = 98834141952. Its totient is φ = 8443315200.

The previous prime is 32121133019. The next prime is 32121133063. The reversal of 32121133020 is 2033112123.

32121133020 is a `hidden beast` number, since 321 + 2 + 11 + 330 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32121132984 and 32121133002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4232149 + ... + 4239731.

It is an arithmetic number, because the mean of its divisors is an integer number (686348208).

Almost surely, 2^32121133020 is an apocalyptic number.

32121133020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 32121133020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49417070976).

32121133020 is an abundant number, since it is smaller than the sum of its proper divisors (66713008932).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

32121133020 is a wasteful number, since it uses less digits than its factorization.

32121133020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7932 (or 7927 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 32121133020 its reverse (2033112123), we get a palindrome (34154245143).

The spelling of 32121133020 in words is "thirty-two billion, one hundred twenty-one million, one hundred thirty-three thousand, twenty".