12162431227 has 8 divisors (see below), whose sum is σ = 12884634576. Its totient is φ = 11440979712.

The previous prime is 12162431219. The next prime is 12162431269. The reversal of 12162431227 is 72213426121.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12162431227 - 2³ = 12162431219 is a prime.

It is a Duffinian 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 in 7 ways as a sum of consecutive naturals, for example, 154473 + ... + 219514.

It is an arithmetic number, because the mean of its divisors is an integer number (1610579322).

Almost surely, 2^12162431227 is an apocalyptic number.

12162431227 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

12162431227 is a deficient number, since it is larger than the sum of its proper divisors (722203349).

12162431227 is a wasteful number, since it uses less digits than its factorization.

12162431227 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375917.

The product of its digits is 8064, while the sum is 31.

Adding to 12162431227 its reverse (72213426121), we get a palindrome (84375857348).

The spelling of 12162431227 in words is "twelve billion, one hundred sixty-two million, four hundred thirty-one thousand, two hundred twenty-seven".