20352641021 has 8 divisors (see below), whose sum is σ = 20407464000. Its totient is φ = 20297876032.

The previous prime is 20352640999. The next prime is 20352641047. The reversal of 20352641021 is 12014625302.

It is a happy number.

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 20352641021 - 2¹⁰ = 20352639997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20352641321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 740501 + ... + 767493.

It is an arithmetic number, because the mean of its divisors is an integer number (2550933000).

Almost surely, 2^20352641021 is an apocalyptic number.

It is an amenable number.

20352641021 is a deficient number, since it is larger than the sum of its proper divisors (54822979).

20352641021 is a wasteful number, since it uses less digits than its factorization.

20352641021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28995.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 20352641021 in words is "twenty billion, three hundred fifty-two million, six hundred forty-one thousand, twenty-one".