13123020220 has 24 divisors (see below), whose sum is σ = 27907185600. Its totient is φ = 5182761792.

The previous prime is 13123020217. The next prime is 13123020221. The reversal of 13123020220 is 2202032131.

13123020220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 13123020194 and 13123020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123020221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4151275 + ... + 4154434.

It is an arithmetic number, because the mean of its divisors is an integer number (1162799400).

Almost surely, 2^13123020220 is an apocalyptic number.

13123020220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123020220 is an abundant number, since it is smaller than the sum of its proper divisors (14784165380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13123020220 is a wasteful number, since it uses less digits than its factorization.

13123020220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8305797 (or 8305795 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13123020220 its reverse (2202032131), we get a palindrome (15325052351).

The spelling of 13123020220 in words is "thirteen billion, one hundred twenty-three million, twenty thousand, two hundred twenty".