12181651023 has 8 divisors (see below), whose sum is σ = 16948384128. Its totient is φ = 7768009304.

The previous prime is 12181651021. The next prime is 12181651033. The reversal of 12181651023 is 32015618121.

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 12181651023 - 2¹ = 12181651021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12181651021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88272765 + ... + 88272902.

It is an arithmetic number, because the mean of its divisors is an integer number (2118548016).

Almost surely, 2^12181651023 is an apocalyptic number.

12181651023 is a deficient number, since it is larger than the sum of its proper divisors (4766733105).

12181651023 is a wasteful number, since it uses less digits than its factorization.

12181651023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176545693.

The product of its (nonzero) digits is 2880, while the sum is 30.

The spelling of 12181651023 in words is "twelve billion, one hundred eighty-one million, six hundred fifty-one thousand, twenty-three".