11121131230 has 64 divisors (see below), whose sum is σ = 23144004288. Its totient is φ = 3802613760.

The previous prime is 11121131201. The next prime is 11121131249. The reversal of 11121131230 is 3213112111.

It is a happy number.

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, 2715064 + ... + 2719156.

It is an arithmetic number, because the mean of its divisors is an integer number (361625067).

Almost surely, 2^11121131230 is an apocalyptic number.

11121131230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121131230 is an abundant number, since it is smaller than the sum of its proper divisors (12022873058).

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

11121131230 is a wasteful number, since it uses less digits than its factorization.

11121131230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11121131230 its reverse (3213112111), we get a palindrome (14334243341).

The spelling of 11121131230 in words is "eleven billion, one hundred twenty-one million, one hundred thirty-one thousand, two hundred thirty".