12150131421 has 16 divisors (see below), whose sum is σ = 17744616000. Its totient is φ = 7360727808.

The previous prime is 12150131417. The next prime is 12150131453. The reversal of 12150131421 is 12413105121.

12150131421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12150131421 - 2² = 12150131417 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150131321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4106071 + ... + 4109028.

It is an arithmetic number, because the mean of its divisors is an integer number (1109038500).

Almost surely, 2^12150131421 is an apocalyptic number.

It is an amenable number.

12150131421 is a deficient number, since it is larger than the sum of its proper divisors (5594484579).

12150131421 is a wasteful number, since it uses less digits than its factorization.

12150131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8215148.

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 12150131421 its reverse (12413105121), we get a palindrome (24563236542).

The spelling of 12150131421 in words is "twelve billion, one hundred fifty million, one hundred thirty-one thousand, four hundred twenty-one".