12312104280 has 256 divisors, whose sum is σ = 43791667200. Its totient is φ = 2709504000.

The previous prime is 12312104269. The next prime is 12312104297. The reversal of 12312104280 is 8240121321.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12312104280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 16393905 + ... + 16394655.

It is an arithmetic number, because the mean of its divisors is an integer number (171061200).

Almost surely, 2^12312104280 is an apocalyptic number.

12312104280 is a gapful number since it is divisible by the number (10) 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 12312104280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21895833600).

12312104280 is an abundant number, since it is smaller than the sum of its proper divisors (31479562920).

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

12312104280 is a wasteful number, since it uses less digits than its factorization.

12312104280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1474 (or 1470 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 24.

The spelling of 12312104280 in words is "twelve billion, three hundred twelve million, one hundred four thousand, two hundred eighty".