123021203141 has 2 divisors, whose sum is σ = 123021203142. Its totient is φ = 123021203140.

The previous prime is 123021203113. The next prime is 123021203143. The reversal of 123021203141 is 141302120321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103086587041 + 19934616100 = 321071^2 + 141190^2 .

It is an emirp because it is prime and its reverse (141302120321) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123021203141 is a prime.

Together with 123021203143, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123021203143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61510601570 + 61510601571.

It is an arithmetic number, because the mean of its divisors is an integer number (61510601571).

Almost surely, 2^123021203141 is an apocalyptic number.

It is an amenable number.

123021203141 is a deficient number, since it is larger than the sum of its proper divisors (1).

123021203141 is an equidigital number, since it uses as much as digits as its factorization.

123021203141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123021203141 its reverse (141302120321), we get a palindrome (264323323462).

The spelling of 123021203141 in words is "one hundred twenty-three billion, twenty-one million, two hundred three thousand, one hundred forty-one".