13023124420 has 24 divisors (see below), whose sum is σ = 27415445400. Its totient is φ = 5196509952.

The previous prime is 13023124399. The next prime is 13023124489. The reversal of 13023124420 is 2442132031.

It can be written as a sum of positive squares in 4 ways, for example, as 3121680384 + 9901444036 = 55872^2 + 99506^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13023124391 and 13023124400.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 787855 + ... + 804214.

It is an arithmetic number, because the mean of its divisors is an integer number (1142310225).

Almost surely, 2^13023124420 is an apocalyptic number.

13023124420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13023124420 is an abundant number, since it is smaller than the sum of its proper divisors (14392320980).

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

13023124420 is a wasteful number, since it uses less digits than its factorization.

13023124420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1592487 (or 1592485 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 13023124420 its reverse (2442132031), we get a palindrome (15465256451).

The spelling of 13023124420 in words is "thirteen billion, twenty-three million, one hundred twenty-four thousand, four hundred twenty".