20323203233 has 4 divisors (see below), whose sum is σ = 20326423728. Its totient is φ = 20319982740.

The previous prime is 20323203227. The next prime is 20323203239. The reversal of 20323203233 is 33230232302.

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, and also an emirpimes, since its reverse is a distinct semiprime: 33230232302 = 2 ⋅16615116151.

It is an interprime number because it is at equal distance from previous prime (20323203227) and next prime (20323203239).

It is a cyclic number.

It is not a de Polignac number, because 20323203233 - 2¹² = 20323199137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20323203199 and 20323203208.

It is not an unprimeable number, because it can be changed into a prime (20323203239) 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 3 ways as a sum of consecutive naturals, for example, 1600763 + ... + 1613408.

It is an arithmetic number, because the mean of its divisors is an integer number (5081605932).

Almost surely, 2^20323203233 is an apocalyptic number.

It is an amenable number.

20323203233 is a deficient number, since it is larger than the sum of its proper divisors (3220495).

20323203233 is an equidigital number, since it uses as much as digits as its factorization.

20323203233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220494.

The product of its (nonzero) digits is 3888, while the sum is 23.

Adding to 20323203233 its reverse (33230232302), we get a palindrome (53553435535).

The spelling of 20323203233 in words is "twenty billion, three hundred twenty-three million, two hundred three thousand, two hundred thirty-three".