121324544000 has 224 divisors, whose sum is σ = 330366209472. Its totient is φ = 44113920000.

The previous prime is 121324543987. The next prime is 121324544053. The reversal of 121324544000 is 445423121.

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 15 ways as a sum of consecutive naturals, for example, 11258615 + ... + 11269385.

Almost surely, 2^121324544000 is an apocalyptic number.

121324544000 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 121324544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165183104736).

121324544000 is an abundant number, since it is smaller than the sum of its proper divisors (209041665472).

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

121324544000 is an equidigital number, since it uses as much as digits as its factorization.

121324544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10823 (or 10789 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 121324544000 its reverse (445423121), we get a palindrome (121769967121).

The spelling of 121324544000 in words is "one hundred twenty-one billion, three hundred twenty-four million, five hundred forty-four thousand".