12434110021 has 8 divisors (see below), whose sum is σ = 12516717024. Its totient is φ = 12351546480.

The previous prime is 12434110019. The next prime is 12434110049. The reversal of 12434110021 is 12001143421.

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 12434110021 - 2¹ = 12434110019 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12434110001) 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, 728046 + ... + 744928.

It is an arithmetic number, because the mean of its divisors is an integer number (1564589628).

Almost surely, 2^12434110021 is an apocalyptic number.

It is an amenable number.

12434110021 is a deficient number, since it is larger than the sum of its proper divisors (82607003).

12434110021 is a wasteful number, since it uses less digits than its factorization.

12434110021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21731.

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

Adding to 12434110021 its reverse (12001143421), we get a palindrome (24435253442).

The spelling of 12434110021 in words is "twelve billion, four hundred thirty-four million, one hundred ten thousand, twenty-one".