123011303424 has 96 divisors (see below), whose sum is σ = 328100310720. Its totient is φ = 40984985600.

The previous prime is 123011303423. The next prime is 123011303497. The reversal of 123011303424 is 424303110321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 123011303394 and 123011303403.

It is not an unprimeable number, because it can be changed into a prime (123011303423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21998869 + ... + 22004459.

It is an arithmetic number, because the mean of its divisors is an integer number (3417711570).

Almost surely, 2^123011303424 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123011303424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164050155360).

123011303424 is an abundant number, since it is smaller than the sum of its proper divisors (205089007296).

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

123011303424 is an equidigital number, since it uses as much as digits as its factorization.

123011303424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9197 (or 9177 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 123011303424 its reverse (424303110321), we get a palindrome (547314413745).

The spelling of 123011303424 in words is "one hundred twenty-three billion, eleven million, three hundred three thousand, four hundred twenty-four".