235520123 has 2 divisors, whose sum is σ = 235520124. Its totient is φ = 235520122.

The previous prime is 235520063. The next prime is 235520141. The reversal of 235520123 is 321025532.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 235520123 - 2¹⁰ = 235519099 is a prime.

It is not a weakly prime, because it can be changed into another prime (235520723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 117760061 + 117760062.

It is an arithmetic number, because the mean of its divisors is an integer number (117760062).

Almost surely, 2^235520123 is an apocalyptic number.

235520123 is a deficient number, since it is larger than the sum of its proper divisors (1).

235520123 is an equidigital number, since it uses as much as digits as its factorization.

235520123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 235520123 is about 15346.6648819866. The cubic root of 235520123 is about 617.5555178547. Note that the first 4 decimals are identical.

Adding to 235520123 its reverse (321025532), we get a palindrome (556545655).

The spelling of 235520123 in words is "two hundred thirty-five million, five hundred twenty thousand, one hundred twenty-three".