210120011263 has 2 divisors, whose sum is σ = 210120011264. Its totient is φ = 210120011262.

The previous prime is 210120011201. The next prime is 210120011273. The reversal of 210120011263 is 362110021012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210120011263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 210120011263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (210120011273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105060005631 + 105060005632.

It is an arithmetic number, because the mean of its divisors is an integer number (105060005632).

Almost surely, 2^210120011263 is an apocalyptic number.

210120011263 is a deficient number, since it is larger than the sum of its proper divisors (1).

210120011263 is an equidigital number, since it uses as much as digits as its factorization.

210120011263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 210120011263 its reverse (362110021012), we get a palindrome (572230032275).

The spelling of 210120011263 in words is "two hundred ten billion, one hundred twenty million, eleven thousand, two hundred sixty-three".