121896320000 has 990 divisors, whose sum is σ = 400226705208. Its totient is φ = 36900864000.

The previous prime is 121896319949. The next prime is 121896320003. The reversal of 121896320000 is 23698121.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121896320003) by changing a digit.

It is a polite number, since it can be written in 89 ways as a sum of consecutive naturals, for example, 5299839989 + ... + 5299840011.

Almost surely, 2^121896320000 is an apocalyptic number.

121896320000 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 121896320000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (200113352604).

121896320000 is an abundant number, since it is smaller than the sum of its proper divisors (278330385208).

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

121896320000 is an equidigital number, since it uses as much as digits as its factorization.

121896320000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 50 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 32.

The spelling of 121896320000 in words is "one hundred twenty-one billion, eight hundred ninety-six million, three hundred twenty thousand".