20431110433141 has 4 divisors (see below), whose sum is σ = 21319419582432. Its totient is φ = 19542801283852.

The previous prime is 20431110433127. The next prime is 20431110433163. The reversal of 20431110433141 is 14133401113402.

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 20431110433141 - 2²³ = 20431102044533 is a prime.

It is a super-2 number, since 2×20431110433141² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20431110439141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444154574611 + ... + 444154574656.

It is an arithmetic number, because the mean of its divisors is an integer number (5329854895608).

Almost surely, 2^{20431110433141} is an apocalyptic number.

It is an amenable number.

20431110433141 is a deficient number, since it is larger than the sum of its proper divisors (888309149291).

20431110433141 is an equidigital number, since it uses as much as digits as its factorization.

20431110433141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888309149290.

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 20431110433141 its reverse (14133401113402), we get a palindrome (34564511546543).

The spelling of 20431110433141 in words is "twenty trillion, four hundred thirty-one billion, one hundred ten million, four hundred thirty-three thousand, one hundred forty-one".