12031212301337 has 2 divisors, whose sum is σ = 12031212301338. Its totient is φ = 12031212301336.

The previous prime is 12031212301333. The next prime is 12031212301343. The reversal of 12031212301337 is 73310321213021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12026496869776 + 4715431561 = 3467924^2 + 68669^2 .

It is an emirp because it is prime and its reverse (73310321213021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12031212301337 - 2² = 12031212301333 is a prime.

It is not a weakly prime, because it can be changed into another prime (12031212301333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6015606150668 + 6015606150669.

It is an arithmetic number, because the mean of its divisors is an integer number (6015606150669).

Almost surely, 2^{12031212301337} is an apocalyptic number.

It is an amenable number.

12031212301337 is a deficient number, since it is larger than the sum of its proper divisors (1).

12031212301337 is an equidigital number, since it uses as much as digits as its factorization.

12031212301337 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 12031212301337 its reverse (73310321213021), we get a palindrome (85341533514358).

The spelling of 12031212301337 in words is "twelve trillion, thirty-one billion, two hundred twelve million, three hundred one thousand, three hundred thirty-seven".