11131312230 has 24 divisors (see below), whose sum is σ = 28941412032. Its totient is φ = 2968349904.

The previous prime is 11131312229. The next prime is 11131312271. The reversal of 11131312230 is 3221313111.

11131312230 is a `hidden beast` number, since 111 + 313 + 12 + 230 = 666.

It is a super-2 number, since 2×11131312230² (a number of 21 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 61840534 + ... + 61840713.

It is an arithmetic number, because the mean of its divisors is an integer number (1205892168).

Almost surely, 2^11131312230 is an apocalyptic number.

11131312230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131312230 is an abundant number, since it is smaller than the sum of its proper divisors (17810099802).

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

11131312230 is a wasteful number, since it uses less digits than its factorization.

11131312230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123681260 (or 123681257 counting only the distinct ones).

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

Adding to 11131312230 its reverse (3221313111), we get a palindrome (14352625341).

The spelling of 11131312230 in words is "eleven billion, one hundred thirty-one million, three hundred twelve thousand, two hundred thirty".