121302000320 has 112 divisors (see below), whose sum is σ = 290066077728. Its totient is φ = 48317153280.

The previous prime is 121302000307. The next prime is 121302000353. The reversal of 121302000320 is 23000203121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121302000295 and 121302000304.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 137686280 + ... + 137687160.

It is an arithmetic number, because the mean of its divisors is an integer number (2589875694).

Almost surely, 2^121302000320 is an apocalyptic number.

121302000320 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 121302000320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145033038864).

121302000320 is an abundant number, since it is smaller than the sum of its proper divisors (168764077408).

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

121302000320 is an equidigital number, since it uses as much as digits as its factorization.

121302000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2218 (or 2208 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 121302000320 its reverse (23000203121), we get a palindrome (144302203441).

The spelling of 121302000320 in words is "one hundred twenty-one billion, three hundred two million, three hundred twenty", and thus it is an aban number.