13143020 has 36 divisors (see below), whose sum is σ = 30343152. Its totient is φ = 4778400.

The previous prime is 13142981. The next prime is 13143037. The reversal of 13143020 is 2034131.

13143020 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 = 13142986 and 13143004.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 296 + ... + 5135.

Almost surely, 2^13143020 is an apocalyptic number.

13143020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13143020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15171576).

13143020 is an abundant number, since it is smaller than the sum of its proper divisors (17200132).

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

13143020 is a wasteful number, since it uses less digits than its factorization.

13143020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5462 (or 5449 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 13143020 is about 3625.3303297769. The cubic root of 13143020 is about 235.9926024685.

Adding to 13143020 its reverse (2034131), we get a palindrome (15177151).

Subtracting from 13143020 its reverse (2034131), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1314 and 3020, that added together give a palindrome (4334).

The spelling of 13143020 in words is "thirteen million, one hundred forty-three thousand, twenty".