13121044 has 12 divisors (see below), whose sum is σ = 23128000. Its totient is φ = 6513048.

The previous prime is 13121041. The next prime is 13121047. The reversal of 13121044 is 44012131.

It is an interprime number because it is at equal distance from previous prime (13121041) and next prime (13121047).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121041) 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, 11244 + ... + 12355.

Almost surely, 2^13121044 is an apocalyptic number.

It is an amenable number.

13121044 is a deficient number, since it is larger than the sum of its proper divisors (10006956).

13121044 is a wasteful number, since it uses less digits than its factorization.

13121044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23742 (or 23740 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 13121044 is about 3622.2981655297. The cubic root of 13121044 is about 235.8609973361.

Adding to 13121044 its reverse (44012131), we get a palindrome (57133175).

The spelling of 13121044 in words is "thirteen million, one hundred twenty-one thousand, forty-four".