20123131141 has 4 divisors (see below), whose sum is σ = 20377854400. Its totient is φ = 19868407884.

The previous prime is 20123131139. The next prime is 20123131159. The reversal of 20123131141 is 14113132102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 20123131141 - 2¹ = 20123131139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123131111) 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 in 3 ways as a sum of consecutive naturals, for example, 127361511 + ... + 127361668.

It is an arithmetic number, because the mean of its divisors is an integer number (5094463600).

Almost surely, 2^20123131141 is an apocalyptic number.

It is an amenable number.

20123131141 is a deficient number, since it is larger than the sum of its proper divisors (254723259).

20123131141 is an equidigital number, since it uses as much as digits as its factorization.

20123131141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254723258.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20123131141 its reverse (14113132102), we get a palindrome (34236263243).

The spelling of 20123131141 in words is "twenty billion, one hundred twenty-three million, one hundred thirty-one thousand, one hundred forty-one".