1241520013 has 16 divisors (see below), whose sum is σ = 1376576640. Its totient is φ = 1117583808.

The previous prime is 1241520011. The next prime is 1241520017. The reversal of 1241520013 is 3100251421.

It is not a de Polignac number, because 1241520013 - 2¹ = 1241520011 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1241520011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107506 + ... + 118492.

It is an arithmetic number, because the mean of its divisors is an integer number (86036040).

Almost surely, 2^1241520013 is an apocalyptic number.

It is an amenable number.

1241520013 is a deficient number, since it is larger than the sum of its proper divisors (135056627).

1241520013 is an equidigital number, since it uses as much as digits as its factorization.

1241520013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11061 (or 11027 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 1241520013 is about 35235.2098475374. The cubic root of 1241520013 is about 1074.7758719332.

Adding to 1241520013 its reverse (3100251421), we get a palindrome (4341771434).

The spelling of 1241520013 in words is "one billion, two hundred forty-one million, five hundred twenty thousand, thirteen".