20423143253141 has 2 divisors, whose sum is σ = 20423143253142. Its totient is φ = 20423143253140.

The previous prime is 20423143253119. The next prime is 20423143253153. The reversal of 20423143253141 is 14135234132402.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10498060085041 + 9925083168100 = 3240071^2 + 3150410^2 .

It is a cyclic number.

It is not a de Polignac number, because 20423143253141 - 2²² = 20423139058837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20423143253341) 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, 10211571626570 + 10211571626571.

It is an arithmetic number, because the mean of its divisors is an integer number (10211571626571).

Almost surely, 2^{20423143253141} is an apocalyptic number.

It is an amenable number.

20423143253141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20423143253141 is an equidigital number, since it uses as much as digits as its factorization.

20423143253141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 35.

Adding to 20423143253141 its reverse (14135234132402), we get a palindrome (34558377385543).

The spelling of 20423143253141 in words is "twenty trillion, four hundred twenty-three billion, one hundred forty-three million, two hundred fifty-three thousand, one hundred forty-one".