12131120042 has 8 divisors (see below), whose sum is σ = 18201210816. Its totient is φ = 6064049772.

The previous prime is 12131120017. The next prime is 12131120051. The reversal of 12131120042 is 24002113121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12131120042.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 745058 + ... + 761165.

It is an arithmetic number, because the mean of its divisors is an integer number (2275151352).

Almost surely, 2^12131120042 is an apocalyptic number.

12131120042 is a deficient number, since it is larger than the sum of its proper divisors (6070090774).

12131120042 is a wasteful number, since it uses less digits than its factorization.

12131120042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1510252.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12131120042 its reverse (24002113121), we get a palindrome (36133233163).

The spelling of 12131120042 in words is "twelve billion, one hundred thirty-one million, one hundred twenty thousand, forty-two".