110123103221 has 2 divisors, whose sum is σ = 110123103222. Its totient is φ = 110123103220.

The previous prime is 110123103187. The next prime is 110123103229. The reversal of 110123103221 is 122301321011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98038498321 + 12084604900 = 313111^2 + 109930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110123103221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 110123103221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (110123103229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55061551610 + 55061551611.

It is an arithmetic number, because the mean of its divisors is an integer number (55061551611).

Almost surely, 2^110123103221 is an apocalyptic number.

It is an amenable number.

110123103221 is a deficient number, since it is larger than the sum of its proper divisors (1).

110123103221 is an equidigital number, since it uses as much as digits as its factorization.

110123103221 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 17.

Adding to 110123103221 its reverse (122301321011), we get a palindrome (232424424232).

The spelling of 110123103221 in words is "one hundred ten billion, one hundred twenty-three million, one hundred three thousand, two hundred twenty-one".