110123420129 has 2 divisors, whose sum is σ = 110123420130. Its totient is φ = 110123420128.

The previous prime is 110123420107. The next prime is 110123420137. The reversal of 110123420129 is 921024321011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60441239104 + 49682181025 = 245848^2 + 222895^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110123420129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 110123420098 and 110123420107.

It is not a weakly prime, because it can be changed into another prime (110123423129) 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, 55061710064 + 55061710065.

It is an arithmetic number, because the mean of its divisors is an integer number (55061710065).

Almost surely, 2^110123420129 is an apocalyptic number.

It is an amenable number.

110123420129 is a deficient number, since it is larger than the sum of its proper divisors (1).

110123420129 is an equidigital number, since it uses as much as digits as its factorization.

110123420129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 110123420129 in words is "one hundred ten billion, one hundred twenty-three million, four hundred twenty thousand, one hundred twenty-nine".