11131031230 has 64 divisors (see below), whose sum is σ = 22341505536. Its totient is φ = 3958960000.

The previous prime is 11131031173. The next prime is 11131031239. The reversal of 11131031230 is 3213013111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11131031239) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 916095 + ... + 928165.

It is an arithmetic number, because the mean of its divisors is an integer number (349086024).

Almost surely, 2^11131031230 is an apocalyptic number.

11131031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131031230 is an abundant number, since it is smaller than the sum of its proper divisors (11210474306).

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

11131031230 is a wasteful number, since it uses less digits than its factorization.

11131031230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12273.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11131031230 its reverse (3213013111), we get a palindrome (14344044341).

The spelling of 11131031230 in words is "eleven billion, one hundred thirty-one million, thirty-one thousand, two hundred thirty".