11531115114 has 32 divisors (see below), whose sum is σ = 23624964096. Its totient is φ = 3750909120.

The previous prime is 11531115109. The next prime is 11531115121. The reversal of 11531115114 is 41151113511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77557 + ... + 170520.

It is an arithmetic number, because the mean of its divisors is an integer number (738280128).

Almost surely, 2^11531115114 is an apocalyptic number.

11531115114 is an abundant number, since it is smaller than the sum of its proper divisors (12093848982).

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

11531115114 is a wasteful number, since it uses less digits than its factorization.

11531115114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248270.

The product of its digits is 300, while the sum is 24.

Adding to 11531115114 its reverse (41151113511), we get a palindrome (52682228625).

The spelling of 11531115114 in words is "eleven billion, five hundred thirty-one million, one hundred fifteen thousand, one hundred fourteen".