1215414303243 has 16 divisors (see below), whose sum is σ = 1932584234496. Its totient is φ = 664325830080.

The previous prime is 1215414303241. The next prime is 1215414303287. The reversal of 1215414303243 is 3423034145121.

It is not a de Polignac number, because 1215414303243 - 2¹ = 1215414303241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1215414303241) 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, 1258192378 + ... + 1258193343.

It is an arithmetic number, because the mean of its divisors is an integer number (120786514656).

Almost surely, 2^{1215414303243} is an apocalyptic number.

1215414303243 is a deficient number, since it is larger than the sum of its proper divisors (717169931253).

1215414303243 is a wasteful number, since it uses less digits than its factorization.

1215414303243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2516385754.

The product of its (nonzero) digits is 34560, while the sum is 33.

Adding to 1215414303243 its reverse (3423034145121), we get a palindrome (4638448448364).

The spelling of 1215414303243 in words is "one trillion, two hundred fifteen billion, four hundred fourteen million, three hundred three thousand, two hundred forty-three".