12327435021 has 8 divisors (see below), whose sum is σ = 17930814624. Its totient is φ = 7471172720.

The previous prime is 12327435017. The next prime is 12327435041. The reversal of 12327435021 is 12053472321.

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

It is not a de Polignac number, because 12327435021 - 2² = 12327435017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12327435021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12327435041) 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, 186779286 + ... + 186779351.

It is an arithmetic number, because the mean of its divisors is an integer number (2241351828).

Almost surely, 2^12327435021 is an apocalyptic number.

12327435021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12327435021 is a deficient number, since it is larger than the sum of its proper divisors (5603379603).

12327435021 is a wasteful number, since it uses less digits than its factorization.

12327435021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373558651.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 12327435021 in words is "twelve billion, three hundred twenty-seven million, four hundred thirty-five thousand, twenty-one".