13121048 has 8 divisors (see below), whose sum is σ = 24601980. Its totient is φ = 6560520.

The previous prime is 13121047. The next prime is 13121071. The reversal of 13121048 is 84012131.

It is a tau number, because it is divible by the number of its divisors (8).

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 as a sum of consecutive naturals, namely, 820058 + ... + 820073.

Almost surely, 2^13121048 is an apocalyptic number.

It is an amenable number.

13121048 is a deficient number, since it is larger than the sum of its proper divisors (11480932).

13121048 is a wasteful number, since it uses less digits than its factorization.

13121048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1640137 (or 1640133 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 13121048 is about 3622.2987176653. The cubic root of 13121048 is about 235.8610213038.

Adding to 13121048 its reverse (84012131), we get a palindrome (97133179).

The spelling of 13121048 in words is "thirteen million, one hundred twenty-one thousand, forty-eight".