234440123 has 4 divisors (see below), whose sum is σ = 235491648. Its totient is φ = 233388600.

The previous prime is 234440113. The next prime is 234440153. The reversal of 234440123 is 321044432.

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 234440123 - 2⁸ = 234439867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234440113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 525428 + ... + 525873.

It is an arithmetic number, because the mean of its divisors is an integer number (58872912).

Almost surely, 2^234440123 is an apocalyptic number.

234440123 is a deficient number, since it is larger than the sum of its proper divisors (1051525).

234440123 is a wasteful number, since it uses less digits than its factorization.

234440123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1051524.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 234440123 is about 15311.4376529443. The cubic root of 234440123 is about 616.6101180514.

Adding to 234440123 its reverse (321044432), we get a palindrome (555484555).

The spelling of 234440123 in words is "two hundred thirty-four million, four hundred forty thousand, one hundred twenty-three".