123404201110342 has 4 divisors (see below), whose sum is σ = 185106301665516. Its totient is φ = 61702100555170.

The previous prime is 123404201110271. The next prime is 123404201110391. The reversal of 123404201110342 is 243011102404321.

It is a happy number.

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

It is a self number, because there is not a number n which added to its sum of digits gives 123404201110342.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30851050277584 + ... + 30851050277587.

It is an arithmetic number, because the mean of its divisors is an integer number (46276575416379).

Almost surely, 2^{123404201110342} is an apocalyptic number.

123404201110342 is a deficient number, since it is larger than the sum of its proper divisors (61702100555174).

123404201110342 is an equidigital number, since it uses as much as digits as its factorization.

123404201110342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61702100555173.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 123404201110342 its reverse (243011102404321), we get a palindrome (366415303514663).

The spelling of 123404201110342 in words is "one hundred twenty-three trillion, four hundred four billion, two hundred one million, one hundred ten thousand, three hundred forty-two".