11501533230 has 64 divisors (see below), whose sum is σ = 30239308800. Its totient is φ = 2776565120.

The previous prime is 11501533229. The next prime is 11501533273. The reversal of 11501533230 is 3233510511.

It is a self number, because there is not a number n which added to its sum of digits gives 11501533230.

It is a congruent 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, 5956 + ... + 151784.

It is an arithmetic number, because the mean of its divisors is an integer number (472489200).

Almost surely, 2^11501533230 is an apocalyptic number.

11501533230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 11501533230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15119654400).

11501533230 is an abundant number, since it is smaller than the sum of its proper divisors (18737775570).

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

11501533230 is a wasteful number, since it uses less digits than its factorization.

11501533230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146089.

The product of its (nonzero) digits is 1350, while the sum is 24.

The spelling of 11501533230 in words is "eleven billion, five hundred one million, five hundred thirty-three thousand, two hundred thirty".