23041444157 has 2 divisors, whose sum is σ = 23041444158. Its totient is φ = 23041444156.

The previous prime is 23041444099. The next prime is 23041444199. The reversal of 23041444157 is 75144414032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22155131716 + 886312441 = 148846^2 + 29771^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23041444157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23041444057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11520722078 + 11520722079.

It is an arithmetic number, because the mean of its divisors is an integer number (11520722079).

Almost surely, 2^23041444157 is an apocalyptic number.

It is an amenable number.

23041444157 is a deficient number, since it is larger than the sum of its proper divisors (1).

23041444157 is an equidigital number, since it uses as much as digits as its factorization.

23041444157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53760, while the sum is 35.

Adding to 23041444157 its reverse (75144414032), we get a palindrome (98185858189).

The spelling of 23041444157 in words is "twenty-three billion, forty-one million, four hundred forty-four thousand, one hundred fifty-seven".