11311123230 has 128 divisors (see below), whose sum is σ = 34840834560. Its totient is φ = 2580779520.

The previous prime is 11311123223. The next prime is 11311123231. The reversal of 11311123230 is 3232111311.

11311123230 is a `hidden beast` number, since 1 + 1 + 311 + 123 + 230 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311123231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61524 + ... + 162503.

It is an arithmetic number, because the mean of its divisors is an integer number (272194020).

Almost surely, 2^11311123230 is an apocalyptic number.

11311123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11311123230 is an abundant number, since it is smaller than the sum of its proper divisors (23529711330).

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

11311123230 is a wasteful number, since it uses less digits than its factorization.

11311123230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224071 (or 224065 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 11311123230 its reverse (3232111311), we get a palindrome (14543234541).

The spelling of 11311123230 in words is "eleven billion, three hundred eleven million, one hundred twenty-three thousand, two hundred thirty".