20345333223 has 4 divisors (see below), whose sum is σ = 27127110968. Its totient is φ = 13563555480.

The previous prime is 20345333149. The next prime is 20345333237. The reversal of 20345333223 is 32233354302.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20345333223 - 2¹³ = 20345325031 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 (20345333273) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3390888868 + ... + 3390888873.

It is an arithmetic number, because the mean of its divisors is an integer number (6781777742).

Almost surely, 2^20345333223 is an apocalyptic number.

20345333223 is a deficient number, since it is larger than the sum of its proper divisors (6781777745).

20345333223 is an equidigital number, since it uses as much as digits as its factorization.

20345333223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6781777744.

The product of its (nonzero) digits is 38880, while the sum is 30.

Adding to 20345333223 its reverse (32233354302), we get a palindrome (52578687525).

The spelling of 20345333223 in words is "twenty billion, three hundred forty-five million, three hundred thirty-three thousand, two hundred twenty-three".