20332011 has 16 divisors (see below), whose sum is σ = 31616000. Its totient is φ = 11617704.

The previous prime is 20331989. The next prime is 20332043. The reversal of 20332011 is 11023302.

It is a happy number.

It is not a de Polignac number, because 20332011 - 2¹⁵ = 20299243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20332211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8851 + ... + 10908.

It is an arithmetic number, because the mean of its divisors is an integer number (1976000).

Almost surely, 2^20332011 is an apocalyptic number.

20332011 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20332011 is a deficient number, since it is larger than the sum of its proper divisors (11283989).

20332011 is an equidigital number, since it uses as much as digits as its factorization.

20332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19783 (or 19769 counting only the distinct ones).

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

The square root of 20332011 is about 4509.1031258999. The cubic root of 20332011 is about 272.9355534923.

Adding to 20332011 its reverse (11023302), we get a palindrome (31355313).

The spelling of 20332011 in words is "twenty million, three hundred thirty-two thousand, eleven".