11103031231230 has 128 divisors (see below), whose sum is σ = 28707849830016. Its totient is φ = 2738040422400.

The previous prime is 11103031231177. The next prime is 11103031231277. The reversal of 11103031231230 is 3213213030111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11103031231197 and 11103031231206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 29084874 + ... + 29464146.

It is an arithmetic number, because the mean of its divisors is an integer number (224280076797).

Almost surely, 2^{11103031231230} is an apocalyptic number.

11103031231230 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 11103031231230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14353924915008).

11103031231230 is an abundant number, since it is smaller than the sum of its proper divisors (17604818598786).

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

11103031231230 is a wasteful number, since it uses less digits than its factorization.

11103031231230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380302.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11103031231230 its reverse (3213213030111), we get a palindrome (14316244261341).

The spelling of 11103031231230 in words is "eleven trillion, one hundred three billion, thirty-one million, two hundred thirty-one thousand, two hundred thirty".