110242563421 has 2 divisors, whose sum is σ = 110242563422. Its totient is φ = 110242563420.

The previous prime is 110242563419. The next prime is 110242563427. The reversal of 110242563421 is 124365242011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56875095225 + 53367468196 = 238485^2 + 231014^2 .

It is a cyclic number.

It is not a de Polignac number, because 110242563421 - 2¹ = 110242563419 is a prime.

Together with 110242563419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110242563427) 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, 55121281710 + 55121281711.

It is an arithmetic number, because the mean of its divisors is an integer number (55121281711).

Almost surely, 2^110242563421 is an apocalyptic number.

It is an amenable number.

110242563421 is a deficient number, since it is larger than the sum of its proper divisors (1).

110242563421 is an equidigital number, since it uses as much as digits as its factorization.

110242563421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11520, while the sum is 31.

The spelling of 110242563421 in words is "one hundred ten billion, two hundred forty-two million, five hundred sixty-three thousand, four hundred twenty-one".