11531535114 has 64 divisors (see below), whose sum is σ = 26084395008. Its totient is φ = 3368035200.

The previous prime is 11531535109. The next prime is 11531535131. The reversal of 11531535114 is 41153513511.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 198927 + ... + 250269.

It is an arithmetic number, because the mean of its divisors is an integer number (407568672).

Almost surely, 2^11531535114 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11531535114, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13042197504).

11531535114 is an abundant number, since it is smaller than the sum of its proper divisors (14552859894).

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

11531535114 is a wasteful number, since it uses less digits than its factorization.

11531535114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51483.

The product of its digits is 4500, while the sum is 30.

It can be divided in two parts, 11531 and 535114, that added together give a palindrome (546645).

The spelling of 11531535114 in words is "eleven billion, five hundred thirty-one million, five hundred thirty-five thousand, one hundred fourteen".