13033131 has 4 divisors (see below), whose sum is σ = 17377512. Its totient is φ = 8688752.

The previous prime is 13033109. The next prime is 13033187. The reversal of 13033131 is 13133031.

13033131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13133031 = 3 ⋅4377677.

It is a cyclic number.

It is not a de Polignac number, because 13033131 - 2⁵ = 13033099 is a prime.

It is a super-2 number, since 2×13033131² = 339725007326322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 13033131.

It is not an unprimeable number, because it can be changed into a prime (13033831) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2172186 + ... + 2172191.

It is an arithmetic number, because the mean of its divisors is an integer number (4344378).

Almost surely, 2^13033131 is an apocalyptic number.

13033131 is a deficient number, since it is larger than the sum of its proper divisors (4344381).

13033131 is an equidigital number, since it uses as much as digits as its factorization.

13033131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4344380.

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 13033131 is about 3610.1427949598. The cubic root of 13033131 is about 235.3330482189. Note that the first 3 decimals are identical.

Adding to 13033131 its reverse (13133031), we get a palindrome (26166162).

The spelling of 13033131 in words is "thirteen million, thirty-three thousand, one hundred thirty-one".