12113231000 has 256 divisors, whose sum is σ = 32904144000. Its totient is φ = 4133683200.

The previous prime is 12113230999. The next prime is 12113231003. The reversal of 12113231000 is 13231121.

It is a super-2 number, since 2×12113231000² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12113231003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13038536 + ... + 13039464.

Almost surely, 2^12113231000 is an apocalyptic number.

12113231000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12113231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16452072000).

12113231000 is an abundant number, since it is smaller than the sum of its proper divisors (20790913000).

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

12113231000 is a wasteful number, since it uses less digits than its factorization.

12113231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1025 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12113231000 its reverse (13231121), we get a palindrome (12126462121).

The spelling of 12113231000 in words is "twelve billion, one hundred thirteen million, two hundred thirty-one thousand".