12430243434021 has 24 divisors (see below), whose sum is σ = 19280327768064. Its totient is φ = 7102713844800.

The previous prime is 12430243433969. The next prime is 12430243434061. The reversal of 12430243434021 is 12043434203421.

It is not a de Polignac number, because 12430243434021 - 2¹¹ = 12430243431973 is a prime.

It is a super-3 number, since 3×12430243434021³ (a number of 40 digits) contains 333 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12430243434061) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2057121 + ... + 5393721.

It is an arithmetic number, because the mean of its divisors is an integer number (803346990336).

Almost surely, 2^{12430243434021} is an apocalyptic number.

It is an amenable number.

12430243434021 is a deficient number, since it is larger than the sum of its proper divisors (6850084334043).

12430243434021 is a wasteful number, since it uses less digits than its factorization.

12430243434021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3361961 (or 3361954 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 12430243434021 its reverse (12043434203421), we get a palindrome (24473677637442).

The spelling of 12430243434021 in words is "twelve trillion, four hundred thirty billion, two hundred forty-three million, four hundred thirty-four thousand, twenty-one".