20100332021 has 8 divisors (see below), whose sum is σ = 25060154304. Its totient is φ = 15662596320.

The previous prime is 20100331981. The next prime is 20100332023. The reversal of 20100332021 is 12023300102.

It is a happy number.

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

It is not a de Polignac number, because 20100332021 - 2³⁰ = 19026590197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20100331987 and 20100332005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100332023) 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 7 ways as a sum of consecutive naturals, for example, 130521560 + ... + 130521713.

It is an arithmetic number, because the mean of its divisors is an integer number (3132519288).

Almost surely, 2^20100332021 is an apocalyptic number.

It is an amenable number.

20100332021 is a deficient number, since it is larger than the sum of its proper divisors (4959822283).

20100332021 is a wasteful number, since it uses less digits than its factorization.

20100332021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261043291.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20100332021 its reverse (12023300102), we get a palindrome (32123632123).

The spelling of 20100332021 in words is "twenty billion, one hundred million, three hundred thirty-two thousand, twenty-one".