235727000021 has 2 divisors, whose sum is σ = 235727000022. Its totient is φ = 235727000020.

The previous prime is 235726999999. The next prime is 235727000059. The reversal of 235727000021 is 120000727532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 216424065796 + 19302934225 = 465214^2 + 138935^2 .

It is a cyclic number.

It is not a de Polignac number, because 235727000021 - 2⁶ = 235726999957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (235727000071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117863500010 + 117863500011.

It is an arithmetic number, because the mean of its divisors is an integer number (117863500011).

Almost surely, 2^235727000021 is an apocalyptic number.

It is an amenable number.

235727000021 is a deficient number, since it is larger than the sum of its proper divisors (1).

235727000021 is an equidigital number, since it uses as much as digits as its factorization.

235727000021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

Adding to 235727000021 its reverse (120000727532), we get a palindrome (355727727553).

The spelling of 235727000021 in words is "two hundred thirty-five billion, seven hundred twenty-seven million, twenty-one", and thus it is an aban number.