13120330 has 16 divisors (see below), whose sum is σ = 23835240. Its totient is φ = 5199552.

The previous prime is 13120321. The next prime is 13120337. The reversal of 13120330 is 3302131.

It can be written as a sum of positive squares in 4 ways, for example, as 7546009 + 5574321 = 2747^2 + 2361^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13120330.

It is not an unprimeable number, because it can be changed into a prime (13120337) 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, 4929 + ... + 7108.

Almost surely, 2^13120330 is an apocalyptic number.

13120330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13120330 is a deficient number, since it is larger than the sum of its proper divisors (10714910).

13120330 is a wasteful number, since it uses less digits than its factorization.

13120330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12153.

The product of its (nonzero) digits is 54, while the sum is 13.

The square root of 13120330 is about 3622.1996079730. The cubic root of 13120330 is about 235.8567190229.

Adding to 13120330 its reverse (3302131), we get a palindrome (16422461).

The spelling of 13120330 in words is "thirteen million, one hundred twenty thousand, three hundred thirty".