13041021 has 16 divisors (see below), whose sum is σ = 20248704. Its totient is φ = 7310784.

The previous prime is 13041013. The next prime is 13041029. The reversal of 13041021 is 12014031.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13041013) and next prime (13041029).

It is not a de Polignac number, because 13041021 - 2³ = 13041013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13040988 and 13041006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13041029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4746 + ... + 6971.

It is an arithmetic number, because the mean of its divisors is an integer number (1265544).

Almost surely, 2^13041021 is an apocalyptic number.

It is an amenable number.

13041021 is a deficient number, since it is larger than the sum of its proper divisors (7207683).

13041021 is a wasteful number, since it uses less digits than its factorization.

13041021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11780.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 13041021 is about 3611.2353841864. The cubic root of 13041021 is about 235.3805272985.

Adding to 13041021 its reverse (12014031), we get a palindrome (25055052).

The spelling of 13041021 in words is "thirteen million, forty-one thousand, twenty-one".