12144310021 has 8 divisors (see below), whose sum is σ = 12183258240. Its totient is φ = 12105394368.

The previous prime is 12144309977. The next prime is 12144310037. The reversal of 12144310021 is 12001344121.

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 12144310021 - 2⁹ = 12144309509 is a prime.

It is a super-2 number, since 2×12144310021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144310121) 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, 895725 + ... + 909181.

It is an arithmetic number, because the mean of its divisors is an integer number (1522907280).

Almost surely, 2^12144310021 is an apocalyptic number.

It is an amenable number.

12144310021 is a deficient number, since it is larger than the sum of its proper divisors (38948219).

12144310021 is a wasteful number, since it uses less digits than its factorization.

12144310021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16283.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12144310021 its reverse (12001344121), we get a palindrome (24145654142).

The spelling of 12144310021 in words is "twelve billion, one hundred forty-four million, three hundred ten thousand, twenty-one".