12131233110 has 96 divisors (see below), whose sum is σ = 33077509920. Its totient is φ = 3198590208.

The previous prime is 12131233073. The next prime is 12131233129. The reversal of 12131233110 is 1133213121.

12131233110 is a `hidden beast` number, since 1 + 21 + 312 + 331 + 1 + 0 = 666.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 188224 + ... + 244316.

It is an arithmetic number, because the mean of its divisors is an integer number (344557395).

Almost surely, 2^12131233110 is an apocalyptic number.

12131233110 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 12131233110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16538754960).

12131233110 is an abundant number, since it is smaller than the sum of its proper divisors (20946276810).

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

12131233110 is an equidigital number, since it uses as much as digits as its factorization.

12131233110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56204 (or 56192 counting only the distinct ones).

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

Adding to 12131233110 its reverse (1133213121), we get a palindrome (13264446231).

The spelling of 12131233110 in words is "twelve billion, one hundred thirty-one million, two hundred thirty-three thousand, one hundred ten".