11515330421356 has 12 divisors (see below), whose sum is σ = 20620475405992. Its totient is φ = 5623766019648.

The previous prime is 11515330421321. The next prime is 11515330421369. The reversal of 11515330421356 is 65312403351511.

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, 33474797565 + ... + 33474797908.

Almost surely, 2^{11515330421356} is an apocalyptic number.

It is an amenable number.

11515330421356 is a deficient number, since it is larger than the sum of its proper divisors (9105144984636).

11515330421356 is a wasteful number, since it uses less digits than its factorization.

11515330421356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66949595520 (or 66949595518 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 40.

Adding to 11515330421356 its reverse (65312403351511), we get a palindrome (76827733772867).

The spelling of 11515330421356 in words is "eleven trillion, five hundred fifteen billion, three hundred thirty million, four hundred twenty-one thousand, three hundred fifty-six".