20332032231 has 8 divisors (see below), whose sum is σ = 30982144384. Its totient is φ = 11618304120.

The previous prime is 20332032191. The next prime is 20332032241. The reversal of 20332032231 is 13223023302.

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

It is not a de Polignac number, because 20332032231 - 2⁷ = 20332032103 is a prime.

It is a super-2 number, since 2×20332032231² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 968192011 = 20332032231 / (2 + 0 + 3 + 3 + 2 + 0 + 3 + 2 + 2 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20332032198 and 20332032207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20332032241) 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, 484095985 + ... + 484096026.

It is an arithmetic number, because the mean of its divisors is an integer number (3872768048).

Almost surely, 2^20332032231 is an apocalyptic number.

20332032231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20332032231 is a deficient number, since it is larger than the sum of its proper divisors (10650112153).

20332032231 is an equidigital number, since it uses as much as digits as its factorization.

20332032231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 968192021.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20332032231 its reverse (13223023302), we get a palindrome (33555055533).

The spelling of 20332032231 in words is "twenty billion, three hundred thirty-two million, thirty-two thousand, two hundred thirty-one".