15513020442013 has 4 divisors (see below), whose sum is σ = 15513204786048. Its totient is φ = 15512836097980.

The previous prime is 15513020442011. The next prime is 15513020442037. The reversal of 15513020442013 is 31024402031551.

15513020442013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 15513020442013 - 2¹ = 15513020442011 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 (15513020442011) 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, 92045731 + ... + 92214112.

It is an arithmetic number, because the mean of its divisors is an integer number (3878301196512).

Almost surely, 2^{15513020442013} is an apocalyptic number.

It is an amenable number.

15513020442013 is a deficient number, since it is larger than the sum of its proper divisors (184344035).

15513020442013 is an equidigital number, since it uses as much as digits as its factorization.

15513020442013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184344034.

The product of its (nonzero) digits is 14400, while the sum is 31.

Adding to 15513020442013 its reverse (31024402031551), we get a palindrome (46537422473564).

The spelling of 15513020442013 in words is "fifteen trillion, five hundred thirteen billion, twenty million, four hundred forty-two thousand, thirteen".