235404155423 has 4 divisors (see below), whose sum is σ = 242997837888. Its totient is φ = 227810472960.

The previous prime is 235404155381. The next prime is 235404155431. The reversal of 235404155423 is 324551404532.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 235404155423 - 2¹⁸ = 235403893279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235404155453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3796841186 + ... + 3796841247.

It is an arithmetic number, because the mean of its divisors is an integer number (60749459472).

Almost surely, 2^235404155423 is an apocalyptic number.

235404155423 is a deficient number, since it is larger than the sum of its proper divisors (7593682465).

235404155423 is an equidigital number, since it uses as much as digits as its factorization.

235404155423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7593682464.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 235404155423 its reverse (324551404532), we get a palindrome (559955559955).

The spelling of 235404155423 in words is "two hundred thirty-five billion, four hundred four million, one hundred fifty-five thousand, four hundred twenty-three".