12131031130 has 32 divisors (see below), whose sum is σ = 21975267600. Its totient is φ = 4821530112.

The previous prime is 12131031113. The next prime is 12131031131. The reversal of 12131031130 is 3113013121.

It can be written as a sum of positive squares in 8 ways, for example, as 3793697649 + 8337333481 = 61593^2 + 91309^2 .

It is not an unprimeable number, because it can be changed into a prime (12131031131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1040614 + ... + 1052206.

Almost surely, 2^12131031130 is an apocalyptic number.

12131031130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131031130 is a deficient number, since it is larger than the sum of its proper divisors (9844236470).

12131031130 is a wasteful number, since it uses less digits than its factorization.

12131031130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12258.

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

Adding to 12131031130 its reverse (3113013121), we get a palindrome (15244044251).

The spelling of 12131031130 in words is "twelve billion, one hundred thirty-one million, thirty-one thousand, one hundred thirty".