12120043903237 has 2 divisors, whose sum is σ = 12120043903238. Its totient is φ = 12120043903236.

The previous prime is 12120043903229. The next prime is 12120043903327. The reversal of 12120043903237 is 73230934002121.

Together with next prime (12120043903327) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8713394807716 + 3406649095521 = 2951846^2 + 1845711^2 .

It is a cyclic number.

It is not a de Polignac number, because 12120043903237 - 2³ = 12120043903229 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12120043903196 and 12120043903205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120043903207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060021951618 + 6060021951619.

It is an arithmetic number, because the mean of its divisors is an integer number (6060021951619).

Almost surely, 2^{12120043903237} is an apocalyptic number.

It is an amenable number.

12120043903237 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120043903237 is an equidigital number, since it uses as much as digits as its factorization.

12120043903237 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54432, while the sum is 37.

Adding to 12120043903237 its reverse (73230934002121), we get a palindrome (85350977905358).

The spelling of 12120043903237 in words is "twelve trillion, one hundred twenty billion, forty-three million, nine hundred three thousand, two hundred thirty-seven".