123353919444 has 36 divisors (see below), whose sum is σ = 328952369312. Its totient is φ = 35243057280.

The previous prime is 123353919439. The next prime is 123353919473. The reversal of 123353919444 is 444919353321.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 123353919393 and 123353919402.

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 11 ways as a sum of consecutive naturals, for example, 3199804 + ... + 3238124.

Almost surely, 2^123353919444 is an apocalyptic number.

123353919444 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123353919444 is an abundant number, since it is smaller than the sum of its proper divisors (205598449868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123353919444 is an frugal number, since it uses more digits than its factorization.

123353919444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76656 (or 38333 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 48.

The spelling of 123353919444 in words is "one hundred twenty-three billion, three hundred fifty-three million, nine hundred nineteen thousand, four hundred forty-four".