12123297472 has 336 divisors, whose sum is σ = 31057413120. Its totient is φ = 4636569600.

The previous prime is 12123297469. The next prime is 12123297497. The reversal of 12123297472 is 27479232121.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 70076778 + ... + 70076950.

Almost surely, 2^12123297472 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 12123297472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15528706560).

12123297472 is an abundant number, since it is smaller than the sum of its proper divisors (18934115648).

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

12123297472 is a wasteful number, since it uses less digits than its factorization.

12123297472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272 (or 249 counting only the distinct ones).

The product of its digits is 84672, while the sum is 40.

The spelling of 12123297472 in words is "twelve billion, one hundred twenty-three million, two hundred ninety-seven thousand, four hundred seventy-two".