1213210120337 has 2 divisors, whose sum is σ = 1213210120338. Its totient is φ = 1213210120336.

The previous prime is 1213210120327. The next prime is 1213210120387. The reversal of 1213210120337 is 7330210123121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1150264830016 + 62945290321 = 1072504^2 + 250889^2 .

It is a cyclic number.

It is not a de Polignac number, because 1213210120337 - 2²⁰ = 1213209071761 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213210120327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606605060168 + 606605060169.

It is an arithmetic number, because the mean of its divisors is an integer number (606605060169).

Almost surely, 2^{1213210120337} is an apocalyptic number.

It is an amenable number.

1213210120337 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213210120337 is an equidigital number, since it uses as much as digits as its factorization.

1213210120337 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 1213210120337 its reverse (7330210123121), we get a palindrome (8543420243458).

The spelling of 1213210120337 in words is "one trillion, two hundred thirteen billion, two hundred ten million, one hundred twenty thousand, three hundred thirty-seven".