13123010020 has 24 divisors (see below), whose sum is σ = 27603012024. Its totient is φ = 5240691456.

The previous prime is 13123010009. The next prime is 13123010051. The reversal of 13123010020 is 2001032131.

13123010020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 148888804 + 12974121216 = 12202^2 + 113904^2 .

It is an unprimeable number.

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, 519387 + ... + 544066.

It is an arithmetic number, because the mean of its divisors is an integer number (1150125501).

Almost surely, 2^13123010020 is an apocalyptic number.

13123010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13123010020 is an abundant number, since it is smaller than the sum of its proper divisors (14480002004).

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

13123010020 is a wasteful number, since it uses less digits than its factorization.

13123010020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064079 (or 1064077 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 13123010020 its reverse (2001032131), we get a palindrome (15124042151).

The spelling of 13123010020 in words is "thirteen billion, one hundred twenty-three million, ten thousand, twenty".