1215302103136 has 48 divisors (see below), whose sum is σ = 2763674983440. Its totient is φ = 519915335680.

The previous prime is 1215302103089. The next prime is 1215302103143. The reversal of 1215302103136 is 6313012035121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101539981 + ... + 101551948.

It is an arithmetic number, because the mean of its divisors is an integer number (57576562155).

Almost surely, 2^{1215302103136} is an apocalyptic number.

1215302103136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1215302103136 is an abundant number, since it is smaller than the sum of its proper divisors (1548372880304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1215302103136 is a wasteful number, since it uses less digits than its factorization.

1215302103136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203091967 (or 203091959 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

Adding to 1215302103136 its reverse (6313012035121), we get a palindrome (7528314138257).

The spelling of 1215302103136 in words is "one trillion, two hundred fifteen billion, three hundred two million, one hundred three thousand, one hundred thirty-six".