20255133323 has 4 divisors (see below), whose sum is σ = 20263170408. Its totient is φ = 20247096240.

The previous prime is 20255133319. The next prime is 20255133377. The reversal of 20255133323 is 32333155202.

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

It is a cyclic number.

It is not a de Polignac number, because 20255133323 - 2² = 20255133319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20255133313) 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, 4014761 + ... + 4019802.

It is an arithmetic number, because the mean of its divisors is an integer number (5065792602).

Almost surely, 2^20255133323 is an apocalyptic number.

20255133323 is a deficient number, since it is larger than the sum of its proper divisors (8037085).

20255133323 is an equidigital number, since it uses as much as digits as its factorization.

20255133323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037084.

The product of its (nonzero) digits is 16200, while the sum is 29.

Adding to 20255133323 its reverse (32333155202), we get a palindrome (52588288525).

The spelling of 20255133323 in words is "twenty billion, two hundred fifty-five million, one hundred thirty-three thousand, three hundred twenty-three".