20332101 has 4 divisors (see below), whose sum is σ = 27109472. Its totient is φ = 13554732.

The previous prime is 20332099. The next prime is 20332133. The reversal of 20332101 is 10123302.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20332101 - 2¹ = 20332099 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 (20332181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3388681 + ... + 3388686.

It is an arithmetic number, because the mean of its divisors is an integer number (6777368).

Almost surely, 2^20332101 is an apocalyptic number.

It is an amenable number.

20332101 is a deficient number, since it is larger than the sum of its proper divisors (6777371).

20332101 is an equidigital number, since it uses as much as digits as its factorization.

20332101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6777370.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 20332101 is about 4509.1131057005. The cubic root of 20332101 is about 272.9359562096.

Adding to 20332101 its reverse (10123302), we get a palindrome (30455403).

The spelling of 20332101 in words is "twenty million, three hundred thirty-two thousand, one hundred one".