1521051124009 has 2 divisors, whose sum is σ = 1521051124010. Its totient is φ = 1521051124008.

The previous prime is 1521051124007. The next prime is 1521051124049. The reversal of 1521051124009 is 9004211501251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1520959825984 + 91298025 = 1233272^2 + 9555^2 .

It is a cyclic number.

It is not a de Polignac number, because 1521051124009 - 2¹ = 1521051124007 is a prime.

Together with 1521051124007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1521051124007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 760525562004 + 760525562005.

It is an arithmetic number, because the mean of its divisors is an integer number (760525562005).

Almost surely, 2^{1521051124009} is an apocalyptic number.

It is an amenable number.

1521051124009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1521051124009 is an equidigital number, since it uses as much as digits as its factorization.

1521051124009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 31.

The spelling of 1521051124009 in words is "one trillion, five hundred twenty-one billion, fifty-one million, one hundred twenty-four thousand, nine".