12131112030 has 16 divisors (see below), whose sum is σ = 29114668944. Its totient is φ = 3234963200.

The previous prime is 12131111999. The next prime is 12131112101. The reversal of 12131112030 is 3021113121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 202185171 + ... + 202185230.

It is an arithmetic number, because the mean of its divisors is an integer number (1819666809).

Almost surely, 2^12131112030 is an apocalyptic number.

12131112030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12131112030 is an abundant number, since it is smaller than the sum of its proper divisors (16983556914).

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

12131112030 is a wasteful number, since it uses less digits than its factorization.

12131112030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404370411.

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

Adding to 12131112030 its reverse (3021113121), we get a palindrome (15152225151).

The spelling of 12131112030 in words is "twelve billion, one hundred thirty-one million, one hundred twelve thousand, thirty".