230429321966581 has 2 divisors, whose sum is σ = 230429321966582. Its totient is φ = 230429321966580.

The previous prime is 230429321966539. The next prime is 230429321966609. The reversal of 230429321966581 is 185669123924032.

230429321966581 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184563364868100 + 45865957098481 = 13585410^2 + 6772441^2 .

It is a cyclic number.

It is not a de Polignac number, because 230429321966581 - 2⁷ = 230429321966453 is a prime.

It is a super-2 number, since 2×230429321966581² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (230429321966881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115214660983290 + 115214660983291.

It is an arithmetic number, because the mean of its divisors is an integer number (115214660983291).

Almost surely, 2^{230429321966581} is an apocalyptic number.

It is an amenable number.

230429321966581 is a deficient number, since it is larger than the sum of its proper divisors (1).

230429321966581 is an equidigital number, since it uses as much as digits as its factorization.

230429321966581 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 33592320, while the sum is 61.

The spelling of 230429321966581 in words is "two hundred thirty trillion, four hundred twenty-nine billion, three hundred twenty-one million, nine hundred sixty-six thousand, five hundred eighty-one".