13010320 has 20 divisors (see below), whose sum is σ = 30249180. Its totient is φ = 5204096.

The previous prime is 13010317. The next prime is 13010339. The reversal of 13010320 is 2301031.

It can be written as a sum of positive squares in 2 ways, for example, as 8549776 + 4460544 = 2924^2 + 2112^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 13010297 and 13010306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 81235 + ... + 81394.

It is an arithmetic number, because the mean of its divisors is an integer number (1512459).

Almost surely, 2^13010320 is an apocalyptic number.

13010320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13010320 is an abundant number, since it is smaller than the sum of its proper divisors (17238860).

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

13010320 is a wasteful number, since it uses less digits than its factorization.

13010320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162642 (or 162636 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 13010320 is about 3606.9821180594. The cubic root of 13010320 is about 235.1956722483.

Adding to 13010320 its reverse (2301031), we get a palindrome (15311351).

The spelling of 13010320 in words is "thirteen million, ten thousand, three hundred twenty".