12180871431 has 12 divisors (see below), whose sum is σ = 17595618040. Its totient is φ = 8120107440.

The previous prime is 12180871429. The next prime is 12180871441. The reversal of 12180871431 is 13417808121.

12180871431 is a `hidden beast` number, since 1 + 218 + 0 + 8 + 7 + 1 + 431 = 666.

It is not a de Polignac number, because 12180871431 - 2¹ = 12180871429 is a prime.

It is a super-2 number, since 2×12180871431² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12180871441) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 199836 + ... + 253566.

Almost surely, 2^12180871431 is an apocalyptic number.

12180871431 is a deficient number, since it is larger than the sum of its proper divisors (5414746609).

12180871431 is a wasteful number, since it uses less digits than its factorization.

12180871431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78926 (or 78923 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 36.

The spelling of 12180871431 in words is "twelve billion, one hundred eighty million, eight hundred seventy-one thousand, four hundred thirty-one".