11531532110 has 96 divisors (see below), whose sum is σ = 25207145568. Its totient is φ = 3783386880.

The previous prime is 11531532101. The next prime is 11531532143. The reversal of 11531532110 is 1123513511.

It is a super-2 number, since 2×11531532110² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1100717 + ... + 1111143.

It is an arithmetic number, because the mean of its divisors is an integer number (262574433).

Almost surely, 2^11531532110 is an apocalyptic number.

11531532110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11531532110 is an abundant number, since it is smaller than the sum of its proper divisors (13675613458).

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

11531532110 is a wasteful number, since it uses less digits than its factorization.

11531532110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10546 (or 10539 counting only the distinct ones).

The product of its (nonzero) digits is 450, while the sum is 23.

The spelling of 11531532110 in words is "eleven billion, five hundred thirty-one million, five hundred thirty-two thousand, one hundred ten".