20113232143 has 2 divisors, whose sum is σ = 20113232144. Its totient is φ = 20113232142.

The previous prime is 20113232129. The next prime is 20113232179. The reversal of 20113232143 is 34123231102.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20113232143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20113238143) 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, 10056616071 + 10056616072.

It is an arithmetic number, because the mean of its divisors is an integer number (10056616072).

Almost surely, 2^20113232143 is an apocalyptic number.

20113232143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20113232143 is an equidigital number, since it uses as much as digits as its factorization.

20113232143 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20113232143 its reverse (34123231102), we get a palindrome (54236463245).

The spelling of 20113232143 in words is "twenty billion, one hundred thirteen million, two hundred thirty-two thousand, one hundred forty-three".