12430044156121 has 2 divisors, whose sum is σ = 12430044156122. Its totient is φ = 12430044156120.

The previous prime is 12430044156109. The next prime is 12430044156151. The reversal of 12430044156121 is 12165144003421.

It is a happy number.

12430044156121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11976894385225 + 453149770896 = 3460765^2 + 673164^2 .

It is an emirp because it is prime and its reverse (12165144003421) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12430044156121 is a prime.

It is not a weakly prime, because it can be changed into another prime (12430044156151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215022078060 + 6215022078061.

It is an arithmetic number, because the mean of its divisors is an integer number (6215022078061).

Almost surely, 2^{12430044156121} is an apocalyptic number.

It is an amenable number.

12430044156121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12430044156121 is an equidigital number, since it uses as much as digits as its factorization.

12430044156121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 34.

Adding to 12430044156121 its reverse (12165144003421), we get a palindrome (24595188159542).

The spelling of 12430044156121 in words is "twelve trillion, four hundred thirty billion, forty-four million, one hundred fifty-six thousand, one hundred twenty-one".