13215311115050 has 96 divisors (see below), whose sum is σ = 27824998514688. Its totient is φ = 4626199800000.

The previous prime is 13215311115031. The next prime is 13215311115053. The reversal of 13215311115050 is 5051111351231.

It is a happy number.

13215311115050 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13215311115053) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1227515 + ... + 5285585.

It is an arithmetic number, because the mean of its divisors is an integer number (289843734528).

Almost surely, 2^{13215311115050} is an apocalyptic number.

13215311115050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13215311115050 is an abundant number, since it is smaller than the sum of its proper divisors (14609687399638).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13215311115050 is a wasteful number, since it uses less digits than its factorization.

13215311115050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4058316 (or 4058311 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 29.

Adding to 13215311115050 its reverse (5051111351231), we get a palindrome (18266422466281).

The spelling of 13215311115050 in words is "thirteen trillion, two hundred fifteen billion, three hundred eleven million, one hundred fifteen thousand, fifty".