1215512341353 has 12 divisors (see below), whose sum is σ = 1769142646128. Its totient is φ = 804155746680.

The previous prime is 1215512341333. The next prime is 1215512341363. The reversal of 1215512341353 is 3531432155121.

It is a happy number.

1215512341353 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 512 + 3 + 4 + 135 + 3 = 666.

It is not a de Polignac number, because 1215512341353 - 2⁶ = 1215512341289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215512341333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 515483275 + ... + 515485632.

It is an arithmetic number, because the mean of its divisors is an integer number (147428553844).

Almost surely, 2^{1215512341353} is an apocalyptic number.

It is an amenable number.

1215512341353 is a deficient number, since it is larger than the sum of its proper divisors (553630304775).

1215512341353 is a wasteful number, since it uses less digits than its factorization.

1215512341353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1030969044 (or 1030969041 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

Adding to 1215512341353 its reverse (3531432155121), we get a palindrome (4746944496474).

The spelling of 1215512341353 in words is "one trillion, two hundred fifteen billion, five hundred twelve million, three hundred forty-one thousand, three hundred fifty-three".