20123312141 has 2 divisors, whose sum is σ = 20123312142. Its totient is φ = 20123312140.

The previous prime is 20123312117. The next prime is 20123312149. The reversal of 20123312141 is 14121332102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19664452900 + 458859241 = 140230^2 + 21421^2 .

It is a cyclic number.

It is not a de Polignac number, because 20123312141 - 2¹⁸ = 20123049997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20123312149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10061656070 + 10061656071.

It is an arithmetic number, because the mean of its divisors is an integer number (10061656071).

Almost surely, 2^20123312141 is an apocalyptic number.

It is an amenable number.

20123312141 is a deficient number, since it is larger than the sum of its proper divisors (1).

20123312141 is an equidigital number, since it uses as much as digits as its factorization.

20123312141 is an evil number, because the sum of its binary digits is even.

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

Adding to 20123312141 its reverse (14121332102), we get a palindrome (34244644243).

The spelling of 20123312141 in words is "twenty billion, one hundred twenty-three million, three hundred twelve thousand, one hundred forty-one".