13121124441000 has 256 divisors, whose sum is σ = 41127940339200. Its totient is φ = 3482747136000.

The previous prime is 13121124440993. The next prime is 13121124441013. The reversal of 13121124441000 is 14442112131.

It is a happy number.

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

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, 1042262706 + ... + 1042275294.

It is an arithmetic number, because the mean of its divisors is an integer number (160656016950).

Almost surely, 2^{13121124441000} is an apocalyptic number.

13121124441000 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 13121124441000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20563970169600).

13121124441000 is an abundant number, since it is smaller than the sum of its proper divisors (28006815898200).

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

13121124441000 is a wasteful number, since it uses less digits than its factorization.

13121124441000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14197 (or 14183 counting only the distinct ones).

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

Adding to 13121124441000 its reverse (14442112131), we get a palindrome (13135566553131).

The spelling of 13121124441000 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-four million, four hundred forty-one thousand".