43242144133 has 2 divisors, whose sum is σ = 43242144134. Its totient is φ = 43242144132.

The previous prime is 43242144131. The next prime is 43242144161. The reversal of 43242144133 is 33144124234.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43238211844 + 3932289 = 207938^2 + 1983^2 .

It is a cyclic number.

It is not a de Polignac number, because 43242144133 - 2¹ = 43242144131 is a prime.

Together with 43242144131, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 43242144095 and 43242144104.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (43242144131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21621072066 + 21621072067.

It is an arithmetic number, because the mean of its divisors is an integer number (21621072067).

Almost surely, 2^43242144133 is an apocalyptic number.

It is an amenable number.

43242144133 is a deficient number, since it is larger than the sum of its proper divisors (1).

43242144133 is an equidigital number, since it uses as much as digits as its factorization.

43242144133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 31.

Adding to 43242144133 its reverse (33144124234), we get a palindrome (76386268367).

The spelling of 43242144133 in words is "forty-three billion, two hundred forty-two million, one hundred forty-four thousand, one hundred thirty-three".