233423123505 has 64 divisors (see below), whose sum is σ = 438885603072. Its totient is φ = 104441610240.

The previous prime is 233423123501. The next prime is 233423123509. The reversal of 233423123505 is 505321324332.

It is an interprime number because it is at equal distance from previous prime (233423123501) and next prime (233423123509).

It is not a de Polignac number, because 233423123505 - 2² = 233423123501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (233423123501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9668329 + ... + 9692441.

It is an arithmetic number, because the mean of its divisors is an integer number (6857587548).

Almost surely, 2^233423123505 is an apocalyptic number.

It is an amenable number.

233423123505 is a deficient number, since it is larger than the sum of its proper divisors (205462479567).

233423123505 is a wasteful number, since it uses less digits than its factorization.

233423123505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28658.

The product of its (nonzero) digits is 64800, while the sum is 33.

Adding to 233423123505 its reverse (505321324332), we get a palindrome (738744447837).

The spelling of 233423123505 in words is "two hundred thirty-three billion, four hundred twenty-three million, one hundred twenty-three thousand, five hundred five".