1215150353073 has 12 divisors (see below), whose sum is σ = 1755240881680. Its totient is φ = 810089294616.

The previous prime is 1215150353071. The next prime is 1215150353089. The reversal of 1215150353073 is 3703530515121.

1215150353073 is a `hidden beast` number, since 1 + 2 + 1 + 5 + 1 + 50 + 3 + 530 + 73 = 666.

It is not a de Polignac number, because 1215150353073 - 2¹ = 1215150353071 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1215150353071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177163 + ... + 1568976.

Almost surely, 2^{1215150353073} is an apocalyptic number.

It is an amenable number.

1215150353073 is a deficient number, since it is larger than the sum of its proper divisors (540090528607).

1215150353073 is a wasteful number, since it uses less digits than its factorization.

1215150353073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823468 (or 1823465 counting only the distinct ones).

The product of its (nonzero) digits is 47250, while the sum is 36.

Adding to 1215150353073 its reverse (3703530515121), we get a palindrome (4918680868194).

The spelling of 1215150353073 in words is "one trillion, two hundred fifteen billion, one hundred fifty million, three hundred fifty-three thousand, seventy-three".