11131141065 has 64 divisors (see below), whose sum is σ = 20324708352. Its totient is φ = 5149267200.

The previous prime is 11131141057. The next prime is 11131141097. The reversal of 11131141065 is 56014113111.

It is not a de Polignac number, because 11131141065 - 2³ = 11131141057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1594212 + ... + 1601178.

It is an arithmetic number, because the mean of its divisors is an integer number (317573568).

Almost surely, 2^11131141065 is an apocalyptic number.

11131141065 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11131141065 is a deficient number, since it is larger than the sum of its proper divisors (9193567287).

11131141065 is a wasteful number, since it uses less digits than its factorization.

11131141065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7430.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 11131141065 its reverse (56014113111), we get a palindrome (67145254176).

The spelling of 11131141065 in words is "eleven billion, one hundred thirty-one million, one hundred forty-one thousand, sixty-five".