11115642245331 has 16 divisors (see below), whose sum is σ = 15987837783456. Its totient is φ = 6828859977216.

The previous prime is 11115642245291. The next prime is 11115642245347. The reversal of 11115642245331 is 13354224651111.

It is not a de Polignac number, because 11115642245331 - 2³⁵ = 11081282506963 is a prime.

It is a super-2 number, since 2×11115642245331² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 11115642245331.

It is not an unprimeable number, because it can be changed into a prime (11115642245381) 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, 240294300 + ... + 240340553.

It is an arithmetic number, because the mean of its divisors is an integer number (999239861466).

Almost surely, 2^{11115642245331} is an apocalyptic number.

11115642245331 is a deficient number, since it is larger than the sum of its proper divisors (4872195538125).

11115642245331 is a wasteful number, since it uses less digits than its factorization.

11115642245331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 480635462.

The product of its digits is 86400, while the sum is 39.

Adding to 11115642245331 its reverse (13354224651111), we get a palindrome (24469866896442).

The spelling of 11115642245331 in words is "eleven trillion, one hundred fifteen billion, six hundred forty-two million, two hundred forty-five thousand, three hundred thirty-one".