121110110263 has 2 divisors, whose sum is σ = 121110110264. Its totient is φ = 121110110262.

The previous prime is 121110110197. The next prime is 121110110269. The reversal of 121110110263 is 362011011121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121110110263 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121110110263.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121110110269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60555055131 + 60555055132.

It is an arithmetic number, because the mean of its divisors is an integer number (60555055132).

Almost surely, 2^121110110263 is an apocalyptic number.

121110110263 is a deficient number, since it is larger than the sum of its proper divisors (1).

121110110263 is an equidigital number, since it uses as much as digits as its factorization.

121110110263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 121110110263 its reverse (362011011121), we get a palindrome (483121121384).

The spelling of 121110110263 in words is "one hundred twenty-one billion, one hundred ten million, one hundred ten thousand, two hundred sixty-three".