12162431206 has 4 divisors (see below), whose sum is σ = 18243646812. Its totient is φ = 6081215602.

The previous prime is 12162431179. The next prime is 12162431207. The reversal of 12162431206 is 60213426121.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×12162431206² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12162431207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3040607800 + ... + 3040607803.

It is an arithmetic number, because the mean of its divisors is an integer number (4560911703).

Almost surely, 2^12162431206 is an apocalyptic number.

12162431206 is a deficient number, since it is larger than the sum of its proper divisors (6081215606).

12162431206 is an equidigital number, since it uses as much as digits as its factorization.

12162431206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6081215605.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 12162431206 its reverse (60213426121), we get a palindrome (72375857327).

The spelling of 12162431206 in words is "twelve billion, one hundred sixty-two million, four hundred thirty-one thousand, two hundred six".