211144245123337 has 2 divisors, whose sum is σ = 211144245123338. Its totient is φ = 211144245123336.

The previous prime is 211144245123293. The next prime is 211144245123401. The reversal of 211144245123337 is 733321542441112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 207525229701696 + 3619015421641 = 14405736^2 + 1902371^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211144245123337 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211144245123293 and 211144245123302.

It is not a weakly prime, because it can be changed into another prime (211144245123037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105572122561668 + 105572122561669.

It is an arithmetic number, because the mean of its divisors is an integer number (105572122561669).

Almost surely, 2^{211144245123337} is an apocalyptic number.

It is an amenable number.

211144245123337 is a deficient number, since it is larger than the sum of its proper divisors (1).

211144245123337 is an equidigital number, since it uses as much as digits as its factorization.

211144245123337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 43.

Adding to 211144245123337 its reverse (733321542441112), we get a palindrome (944465787564449).

The spelling of 211144245123337 in words is "two hundred eleven trillion, one hundred forty-four billion, two hundred forty-five million, one hundred twenty-three thousand, three hundred thirty-seven".