20228835513 has 4 divisors (see below), whose sum is σ = 26971780688. Its totient is φ = 13485890340.

The previous prime is 20228835503. The next prime is 20228835569. The reversal of 20228835513 is 31553882202.

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.

It is not a de Polignac number, because 20228835513 - 2⁸ = 20228835257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20228835503) 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, 3371472583 + ... + 3371472588.

It is an arithmetic number, because the mean of its divisors is an integer number (6742945172).

Almost surely, 2^20228835513 is an apocalyptic number.

It is an amenable number.

20228835513 is a deficient number, since it is larger than the sum of its proper divisors (6742945175).

20228835513 is an equidigital number, since it uses as much as digits as its factorization.

20228835513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6742945174.

The product of its (nonzero) digits is 115200, while the sum is 39.

The spelling of 20228835513 in words is "twenty billion, two hundred twenty-eight million, eight hundred thirty-five thousand, five hundred thirteen".