123404242102 has 8 divisors (see below), whose sum is σ = 187186210200. Its totient is φ = 61008838704.

The previous prime is 123404242061. The next prime is 123404242151. The reversal of 123404242102 is 201242404321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 346640952 + ... + 346641307.

It is an arithmetic number, because the mean of its divisors is an integer number (23398276275).

Almost surely, 2^123404242102 is an apocalyptic number.

123404242102 is a deficient number, since it is larger than the sum of its proper divisors (63781968098).

123404242102 is an equidigital number, since it uses as much as digits as its factorization.

123404242102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693282350.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 123404242102 its reverse (201242404321), we get a palindrome (324646646423).

The spelling of 123404242102 in words is "one hundred twenty-three billion, four hundred four million, two hundred forty-two thousand, one hundred two".