32121130021 has 8 divisors (see below), whose sum is σ = 32797293984. Its totient is φ = 31447562640.

The previous prime is 32121130007. The next prime is 32121130037. The reversal of 32121130021 is 12003112123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32121130021 - 2¹³ = 32121121829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 32121129977 and 32121130004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32121130001) 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 7 ways as a sum of consecutive naturals, for example, 624135 + ... + 673636.

It is an arithmetic number, because the mean of its divisors is an integer number (4099661748).

Almost surely, 2^32121130021 is an apocalyptic number.

It is an amenable number.

32121130021 is a deficient number, since it is larger than the sum of its proper divisors (676163963).

32121130021 is a wasteful number, since it uses less digits than its factorization.

32121130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298291.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 32121130021 its reverse (12003112123), we get a palindrome (44124242144).

The spelling of 32121130021 in words is "thirty-two billion, one hundred twenty-one million, one hundred thirty thousand, twenty-one".