12130031112 has 32 divisors (see below), whose sum is σ = 30563865600. Its totient is φ = 4011505344.

The previous prime is 12130031093. The next prime is 12130031113. The reversal of 12130031112 is 21113003121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12130031091 and 12130031100.

It is not an unprimeable number, because it can be changed into a prime (12130031113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1986787 + ... + 1992882.

It is an arithmetic number, because the mean of its divisors is an integer number (955120800).

Almost surely, 2^12130031112 is an apocalyptic number.

12130031112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12130031112 is an abundant number, since it is smaller than the sum of its proper divisors (18433834488).

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

12130031112 is a wasteful number, since it uses less digits than its factorization.

12130031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979805 (or 3979801 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12130031112 its reverse (21113003121), we get a palindrome (33243034233).

The spelling of 12130031112 in words is "twelve billion, one hundred thirty million, thirty-one thousand, one hundred twelve".