1521313100013 has 16 divisors (see below), whose sum is σ = 2440201464320. Its totient is φ = 823567993776.

The previous prime is 1521313100003. The next prime is 1521313100059. The reversal of 1521313100013 is 3100013131251.

It is not a de Polignac number, because 1521313100013 - 2⁵ = 1521313099981 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1521313100003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1906406995 + ... + 1906407792.

It is an arithmetic number, because the mean of its divisors is an integer number (152512591520).

Almost surely, 2^{1521313100013} is an apocalyptic number.

It is an amenable number.

1521313100013 is a deficient number, since it is larger than the sum of its proper divisors (918888364307).

1521313100013 is a wasteful number, since it uses less digits than its factorization.

1521313100013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3812814816.

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 1521313100013 its reverse (3100013131251), we get a palindrome (4621326231264).

The spelling of 1521313100013 in words is "one trillion, five hundred twenty-one billion, three hundred thirteen million, one hundred thousand, thirteen".