12150131420 has 24 divisors (see below), whose sum is σ = 29160315744. Its totient is φ = 4165759296.

The previous prime is 12150131417. The next prime is 12150131453. The reversal of 12150131420 is 2413105121.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12150131392 and 12150131401.

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, 43393187 + ... + 43393466.

It is an arithmetic number, because the mean of its divisors is an integer number (1215013156).

Almost surely, 2^12150131420 is an apocalyptic number.

12150131420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12150131420 is an abundant number, since it is smaller than the sum of its proper divisors (17010184324).

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

12150131420 is a wasteful number, since it uses less digits than its factorization.

12150131420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86786669 (or 86786667 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 12150131420 its reverse (2413105121), we get a palindrome (14563236541).

The spelling of 12150131420 in words is "twelve billion, one hundred fifty million, one hundred thirty-one thousand, four hundred twenty".