12103123032 has 640 divisors, whose sum is σ = 46601533440. Its totient is φ = 2832952320.

The previous prime is 12103122971. The next prime is 12103123051. The reversal of 12103123032 is 23032130121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 12103122996 and 12103123014.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 30486258 + ... + 30486654.

It is an arithmetic number, because the mean of its divisors is an integer number (72814896).

Almost surely, 2^12103123032 is an apocalyptic number.

12103123032 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 12103123032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23300766720).

12103123032 is an abundant number, since it is smaller than the sum of its proper divisors (34498410408).

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

12103123032 is a wasteful number, since it uses less digits than its factorization.

12103123032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 493 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12103123032 its reverse (23032130121), we get a palindrome (35135253153).

The spelling of 12103123032 in words is "twelve billion, one hundred three million, one hundred twenty-three thousand, thirty-two".