13023222020 has 24 divisors (see below), whose sum is σ = 27506858904. Its totient is φ = 5179175936.

The previous prime is 13023222007. The next prime is 13023222029. The reversal of 13023222020 is 2022232031.

It can be written as a sum of positive squares in 4 ways, for example, as 1630221376 + 11393000644 = 40376^2 + 106738^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13023222020.

It is not an unprimeable number, because it can be changed into a prime (13023222029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1878509 + ... + 1885428.

It is an arithmetic number, because the mean of its divisors is an integer number (1146119121).

Almost surely, 2^13023222020 is an apocalyptic number.

13023222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023222020 is an abundant number, since it is smaller than the sum of its proper divisors (14483636884).

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

13023222020 is a wasteful number, since it uses less digits than its factorization.

13023222020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3764119 (or 3764117 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 13023222020 its reverse (2022232031), we get a palindrome (15045454051).

The spelling of 13023222020 in words is "thirteen billion, twenty-three million, two hundred twenty-two thousand, twenty".