1215263065203 has 24 divisors (see below), whose sum is σ = 2027604689136. Its totient is φ = 693198182400.

The previous prime is 1215263065199. The next prime is 1215263065217. The reversal of 1215263065203 is 3025603625121.

1215263065203 is a `hidden beast` number, since 1 + 2 + 15 + 2 + 630 + 6 + 5 + 2 + 0 + 3 = 666.

It is not a de Polignac number, because 1215263065203 - 2² = 1215263065199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215263065223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 361039038 + ... + 361042403.

It is an arithmetic number, because the mean of its divisors is an integer number (84483528714).

Almost surely, 2^{1215263065203} is an apocalyptic number.

1215263065203 is a deficient number, since it is larger than the sum of its proper divisors (812341623933).

1215263065203 is a wasteful number, since it uses less digits than its factorization.

1215263065203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722081475 (or 722081472 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The spelling of 1215263065203 in words is "one trillion, two hundred fifteen billion, two hundred sixty-three million, sixty-five thousand, two hundred three".