13203020 has 48 divisors (see below), whose sum is σ = 28788480. Its totient is φ = 5083584.

The previous prime is 13203017. The next prime is 13203031. The reversal of 13203020 is 2030231.

13203020 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 = 13202992 and 13203010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78977 + ... + 79143.

It is an arithmetic number, because the mean of its divisors is an integer number (599760).

Almost surely, 2^13203020 is an apocalyptic number.

13203020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13203020 is an abundant number, since it is smaller than the sum of its proper divisors (15585460).

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

13203020 is a wasteful number, since it uses less digits than its factorization.

13203020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302 (or 300 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 11.

The square root of 13203020 is about 3633.5960149692. The cubic root of 13203020 is about 236.3511721059.

Adding to 13203020 its reverse (2030231), we get a palindrome (15233251).

The spelling of 13203020 in words is "thirteen million, two hundred three thousand, twenty".