235540243513 has 2 divisors, whose sum is σ = 235540243514. Its totient is φ = 235540243512.

The previous prime is 235540243511. The next prime is 235540243529. The reversal of 235540243513 is 315342045532.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 235252160784 + 288082729 = 485028^2 + 16973^2 .

It is a cyclic number.

It is not a de Polignac number, because 235540243513 - 2¹ = 235540243511 is a prime.

Together with 235540243511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (235540243511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117770121756 + 117770121757.

It is an arithmetic number, because the mean of its divisors is an integer number (117770121757).

Almost surely, 2^235540243513 is an apocalyptic number.

It is an amenable number.

235540243513 is a deficient number, since it is larger than the sum of its proper divisors (1).

235540243513 is an equidigital number, since it uses as much as digits as its factorization.

235540243513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 37.

The spelling of 235540243513 in words is "two hundred thirty-five billion, five hundred forty million, two hundred forty-three thousand, five hundred thirteen".