13011830 has 32 divisors (see below), whose sum is σ = 25498368. Its totient is φ = 4752000.

The previous prime is 13011829. The next prime is 13011839. The reversal of 13011830 is 3811031.

It is a super-4 number, since 4×13011830⁴ (a number of 30 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13011799 and 13011808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13011839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12635 + ... + 13625.

It is an arithmetic number, because the mean of its divisors is an integer number (796824).

Almost surely, 2^13011830 is an apocalyptic number.

13011830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13011830 is a deficient number, since it is larger than the sum of its proper divisors (12486538).

13011830 is a wasteful number, since it uses less digits than its factorization.

13011830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 13011830 is about 3607.1914282444. The cubic root of 13011830 is about 235.2047709670.

Adding to 13011830 its reverse (3811031), we get a palindrome (16822861).

The spelling of 13011830 in words is "thirteen million, eleven thousand, eight hundred thirty".