12131785348 has 12 divisors (see below), whose sum is σ = 21234240720. Its totient is φ = 6064859432.

The previous prime is 12131785319. The next prime is 12131785417. The reversal of 12131785348 is 84358713121.

It is a super-2 number, since 2×12131785348² (a number of 21 digits) contains 22 as substring.

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, 231586 + ... + 279097.

It is an arithmetic number, because the mean of its divisors is an integer number (1769520060).

Almost surely, 2^12131785348 is an apocalyptic number.

It is an amenable number.

12131785348 is a deficient number, since it is larger than the sum of its proper divisors (9102455372).

12131785348 is a wasteful number, since it uses less digits than its factorization.

12131785348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516626 (or 516624 counting only the distinct ones).

The product of its digits is 161280, while the sum is 43.

The spelling of 12131785348 in words is "twelve billion, one hundred thirty-one million, seven hundred eighty-five thousand, three hundred forty-eight".