20003225311 has 4 divisors (see below), whose sum is σ = 20007652392. Its totient is φ = 19998798232.

The previous prime is 20003225299. The next prime is 20003225351. The reversal of 20003225311 is 11352230002.

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 20003225311 - 2⁷ = 20003225183 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 (20003225351) 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, 2206756 + ... + 2215801.

It is an arithmetic number, because the mean of its divisors is an integer number (5001913098).

Almost surely, 2^20003225311 is an apocalyptic number.

20003225311 is a deficient number, since it is larger than the sum of its proper divisors (4427081).

20003225311 is an equidigital number, since it uses as much as digits as its factorization.

20003225311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4427080.

The product of its (nonzero) digits is 360, while the sum is 19.

Adding to 20003225311 its reverse (11352230002), we get a palindrome (31355455313).

The spelling of 20003225311 in words is "twenty billion, three million, two hundred twenty-five thousand, three hundred eleven".