123342101 has 2 divisors, whose sum is σ = 123342102. Its totient is φ = 123342100.

The previous prime is 123342097. The next prime is 123342137. The reversal of 123342101 is 101243321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 116079076 + 7263025 = 10774^2 + 2695^2 .

It is a cyclic number.

It is not a de Polignac number, because 123342101 - 2² = 123342097 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123342101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123342151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61671050 + 61671051.

It is an arithmetic number, because the mean of its divisors is an integer number (61671051).

Almost surely, 2^123342101 is an apocalyptic number.

It is an amenable number.

123342101 is a deficient number, since it is larger than the sum of its proper divisors (1).

123342101 is an equidigital number, since it uses as much as digits as its factorization.

123342101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 123342101 is about 11105.9489013771. The cubic root of 123342101 is about 497.7796224425.

Adding to 123342101 its reverse (101243321), we get a palindrome (224585422).

It can be divided in two parts, 1233 and 42101, that added together give a palindrome (43334).

The spelling of 123342101 in words is "one hundred twenty-three million, three hundred forty-two thousand, one hundred one".