23443132430161 has 2 divisors, whose sum is σ = 23443132430162. Its totient is φ = 23443132430160.

The previous prime is 23443132430117. The next prime is 23443132430213. The reversal of 23443132430161 is 16103423134432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22421124659025 + 1022007771136 = 4735095^2 + 1010944^2 .

It is a cyclic number.

It is not a de Polignac number, because 23443132430161 - 2⁹ = 23443132429649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23443132430161.

It is not a weakly prime, because it can be changed into another prime (23443132437161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11721566215080 + 11721566215081.

It is an arithmetic number, because the mean of its divisors is an integer number (11721566215081).

Almost surely, 2^{23443132430161} is an apocalyptic number.

It is an amenable number.

23443132430161 is a deficient number, since it is larger than the sum of its proper divisors (1).

23443132430161 is an equidigital number, since it uses as much as digits as its factorization.

23443132430161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 37.

Adding to 23443132430161 its reverse (16103423134432), we get a palindrome (39546555564593).

The spelling of 23443132430161 in words is "twenty-three trillion, four hundred forty-three billion, one hundred thirty-two million, four hundred thirty thousand, one hundred sixty-one".