12197104038 has 128 divisors (see below), whose sum is σ = 31521484800. Its totient is φ = 3424052736.

The previous prime is 12197104009. The next prime is 12197104061. The reversal of 12197104038 is 83040179121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12197103993 and 12197104011.

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, 6956970 + ... + 6958722.

It is an arithmetic number, because the mean of its divisors is an integer number (246261600).

Almost surely, 2^12197104038 is an apocalyptic number.

12197104038 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 12197104038, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15760742400).

12197104038 is an abundant number, since it is smaller than the sum of its proper divisors (19324380762).

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

12197104038 is a wasteful number, since it uses less digits than its factorization.

12197104038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2083 (or 2077 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 12197104038 in words is "twelve billion, one hundred ninety-seven million, one hundred four thousand, thirty-eight".