13121033 has 2 divisors, whose sum is σ = 13121034. Its totient is φ = 13121032.

The previous prime is 13120999. The next prime is 13121041. The reversal of 13121033 is 33012131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11235904 + 1885129 = 3352^2 + 1373^2 .

It is a cyclic number.

It is not a de Polignac number, because 13121033 - 2⁸ = 13120777 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13120999 and 13121017.

It is not a weakly prime, because it can be changed into another prime (13121083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560516 + 6560517.

It is an arithmetic number, because the mean of its divisors is an integer number (6560517).

Almost surely, 2^13121033 is an apocalyptic number.

It is an amenable number.

13121033 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121033 is an equidigital number, since it uses as much as digits as its factorization.

13121033 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 13121033 is about 3622.2966471563. The cubic root of 13121033 is about 235.8609314249.

Adding to 13121033 its reverse (33012131), we get a palindrome (46133164).

The spelling of 13121033 in words is "thirteen million, one hundred twenty-one thousand, thirty-three".