13001320 has 32 divisors (see below), whose sum is σ = 30794400. Its totient is φ = 4926528.

The previous prime is 13001291. The next prime is 13001321. The reversal of 13001320 is 2310031.

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 = 13001297 and 13001306.

It is not an unprimeable number, because it can be changed into a prime (13001321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7794 + ... + 9313.

It is an arithmetic number, because the mean of its divisors is an integer number (962325).

Almost surely, 2^13001320 is an apocalyptic number.

13001320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13001320 is an abundant number, since it is smaller than the sum of its proper divisors (17793080).

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

13001320 is a wasteful number, since it uses less digits than its factorization.

13001320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17137 (or 17133 counting only the distinct ones).

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

The square root of 13001320 is about 3605.7343218823. The cubic root of 13001320 is about 235.1414268663.

Adding to 13001320 its reverse (2310031), we get a palindrome (15311351).

The spelling of 13001320 in words is "thirteen million, one thousand, three hundred twenty".