13031043 has 4 divisors (see below), whose sum is σ = 17374728. Its totient is φ = 8687360.

The previous prime is 13031033. The next prime is 13031099. The reversal of 13031043 is 34013031.

13031043 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13031043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13031033) 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, 2171838 + ... + 2171843.

It is an arithmetic number, because the mean of its divisors is an integer number (4343682).

Almost surely, 2^13031043 is an apocalyptic number.

13031043 is a deficient number, since it is larger than the sum of its proper divisors (4343685).

13031043 is an equidigital number, since it uses as much as digits as its factorization.

13031043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4343684.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 13031043 is about 3609.8535981394. The cubic root of 13031043 is about 235.3204802067.

Adding to 13031043 its reverse (34013031), we get a palindrome (47044074).

It can be divided in two parts, 1303 and 1043, that added together give a triangular number (2346 = T₆₈).

The spelling of 13031043 in words is "thirteen million, thirty-one thousand, forty-three".