142123301 has 2 divisors, whose sum is σ = 142123302. Its totient is φ = 142123300.

The previous prime is 142123297. The next prime is 142123309. The reversal of 142123301 is 103321241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 106708900 + 35414401 = 10330^2 + 5951^2 .

It is a cyclic number.

It is not a de Polignac number, because 142123301 - 2² = 142123297 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 142123301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142123309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71061650 + 71061651.

It is an arithmetic number, because the mean of its divisors is an integer number (71061651).

Almost surely, 2^142123301 is an apocalyptic number.

It is an amenable number.

142123301 is a deficient number, since it is larger than the sum of its proper divisors (1).

142123301 is an equidigital number, since it uses as much as digits as its factorization.

142123301 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 142123301 is about 11921.5477602533. The cubic root of 142123301 is about 521.8613042457.

Adding to 142123301 its reverse (103321241), we get a palindrome (245444542).

The spelling of 142123301 in words is "one hundred forty-two million, one hundred twenty-three thousand, three hundred one".