11511243230 has 16 divisors (see below), whose sum is σ = 21225610224. Its totient is φ = 4492192320.

The previous prime is 11511243071. The next prime is 11511243253. The reversal of 11511243230 is 3234211511.

It is a junction number, because it is equal to n+sod(n) for n = 11511243196 and 11511243205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14037692 + ... + 14038511.

It is an arithmetic number, because the mean of its divisors is an integer number (1326600639).

Almost surely, 2^11511243230 is an apocalyptic number.

11511243230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11511243230 is a deficient number, since it is larger than the sum of its proper divisors (9714366994).

11511243230 is a wasteful number, since it uses less digits than its factorization.

11511243230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28076251.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11511243230 its reverse (3234211511), we get a palindrome (14745454741).

The spelling of 11511243230 in words is "eleven billion, five hundred eleven million, two hundred forty-three thousand, two hundred thirty".