12031423165 has 8 divisors (see below), whose sum is σ = 15065434368. Its totient is φ = 9206654160.

The previous prime is 12031423121. The next prime is 12031423171. The reversal of 12031423165 is 56132413021.

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

It is not a de Polignac number, because 12031423165 - 2⁷ = 12031423037 is a prime.

It is a Duffinian number.

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, 52310421 + ... + 52310650.

It is an arithmetic number, because the mean of its divisors is an integer number (1883179296).

Almost surely, 2^12031423165 is an apocalyptic number.

It is an amenable number.

12031423165 is a deficient number, since it is larger than the sum of its proper divisors (3034011203).

12031423165 is a wasteful number, since it uses less digits than its factorization.

12031423165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104621099.

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 12031423165 its reverse (56132413021), we get a palindrome (68163836186).

The spelling of 12031423165 in words is "twelve billion, thirty-one million, four hundred twenty-three thousand, one hundred sixty-five".