211320301123 has 2 divisors, whose sum is σ = 211320301124. Its totient is φ = 211320301122.

The previous prime is 211320301081. The next prime is 211320301141. The reversal of 211320301123 is 321103023112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211320301123 - 2³⁷ = 73881347651 is a prime.

It is a super-2 number, since 2×211320301123² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211320301123.

It is not a weakly prime, because it can be changed into another prime (211320301723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105660150561 + 105660150562.

It is an arithmetic number, because the mean of its divisors is an integer number (105660150562).

Almost surely, 2^211320301123 is an apocalyptic number.

211320301123 is a deficient number, since it is larger than the sum of its proper divisors (1).

211320301123 is an equidigital number, since it uses as much as digits as its factorization.

211320301123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 211320301123 its reverse (321103023112), we get a palindrome (532423324235).

The spelling of 211320301123 in words is "two hundred eleven billion, three hundred twenty million, three hundred one thousand, one hundred twenty-three".