234200420557 has 2 divisors, whose sum is σ = 234200420558. Its totient is φ = 234200420556.

The previous prime is 234200420551. The next prime is 234200420567. The reversal of 234200420557 is 755024002432.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 200071922436 + 34128498121 = 447294^2 + 184739^2 .

It is a cyclic number.

It is not a de Polignac number, because 234200420557 - 2¹¹ = 234200418509 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (234200420551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117100210278 + 117100210279.

It is an arithmetic number, because the mean of its divisors is an integer number (117100210279).

Almost surely, 2^234200420557 is an apocalyptic number.

It is an amenable number.

234200420557 is a deficient number, since it is larger than the sum of its proper divisors (1).

234200420557 is an equidigital number, since it uses as much as digits as its factorization.

234200420557 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 67200, while the sum is 34.

Adding to 234200420557 its reverse (755024002432), we get a palindrome (989224422989).

The spelling of 234200420557 in words is "two hundred thirty-four billion, two hundred million, four hundred twenty thousand, five hundred fifty-seven".