123003304032 has 192 divisors, whose sum is σ = 372375843840. Its totient is φ = 34824216576.

The previous prime is 123003304009. The next prime is 123003304117. The reversal of 123003304032 is 230403300321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78898069 + ... + 78899627.

It is an arithmetic number, because the mean of its divisors is an integer number (1939457520).

Almost surely, 2^123003304032 is an apocalyptic number.

123003304032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123003304032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (186187921920).

123003304032 is an abundant number, since it is smaller than the sum of its proper divisors (249372539808).

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

123003304032 is a wasteful number, since it uses less digits than its factorization.

123003304032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2573 (or 2565 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 123003304032 its reverse (230403300321), we get a palindrome (353406604353).

The spelling of 123003304032 in words is "one hundred twenty-three billion, three million, three hundred four thousand, thirty-two".