1215143513344 has 36 divisors (see below), whose sum is σ = 2428622783104. Its totient is φ = 606799646208.

The previous prime is 1215143513317. The next prime is 1215143513351. The reversal of 1215143513344 is 4433153415121.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2814192 + ... + 3217135.

Almost surely, 2^{1215143513344} is an apocalyptic number.

It is an amenable number.

1215143513344 is a deficient number, since it is larger than the sum of its proper divisors (1213479269760).

1215143513344 is an frugal number, since it uses more digits than its factorization.

1215143513344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6032130 (or 6032116 counting only the distinct ones).

The product of its digits is 86400, while the sum is 37.

Adding to 1215143513344 its reverse (4433153415121), we get a palindrome (5648296928465).

The spelling of 1215143513344 in words is "one trillion, two hundred fifteen billion, one hundred forty-three million, five hundred thirteen thousand, three hundred forty-four".