123553243604 has 24 divisors (see below), whose sum is σ = 255627402240. Its totient is φ = 51125479776.

The previous prime is 123553243601. The next prime is 123553243609. The reversal of 123553243604 is 406342355321.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123553243601) 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 7 ways as a sum of consecutive naturals, for example, 76078772 + ... + 76080395.

It is an arithmetic number, because the mean of its divisors is an integer number (10651141760).

Almost surely, 2^123553243604 is an apocalyptic number.

123553243604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

123553243604 is an abundant number, since it is smaller than the sum of its proper divisors (132074158636).

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

123553243604 is a wasteful number, since it uses less digits than its factorization.

123553243604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152159207 (or 152159205 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 38.

Adding to 123553243604 its reverse (406342355321), we get a palindrome (529895598925).

The spelling of 123553243604 in words is "one hundred twenty-three billion, five hundred fifty-three million, two hundred forty-three thousand, six hundred four".