23242155437 has 2 divisors, whose sum is σ = 23242155438. Its totient is φ = 23242155436.

The previous prime is 23242155373. The next prime is 23242155463. The reversal of 23242155437 is 73455124232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22563344521 + 678810916 = 150211^2 + 26054^2 .

It is a cyclic number.

It is not a de Polignac number, because 23242155437 - 2⁶ = 23242155373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23242155437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23242155037) 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, 11621077718 + 11621077719.

It is an arithmetic number, because the mean of its divisors is an integer number (11621077719).

Almost surely, 2^23242155437 is an apocalyptic number.

It is an amenable number.

23242155437 is a deficient number, since it is larger than the sum of its proper divisors (1).

23242155437 is an equidigital number, since it uses as much as digits as its factorization.

23242155437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 38.

Adding to 23242155437 its reverse (73455124232), we get a palindrome (96697279669).

The spelling of 23242155437 in words is "twenty-three billion, two hundred forty-two million, one hundred fifty-five thousand, four hundred thirty-seven".