121303303000 has 128 divisors (see below), whose sum is σ = 311049123840. Its totient is φ = 43911600000.

The previous prime is 121303302997. The next prime is 121303303001. The reversal of 121303303000 is 303303121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121303303001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2428275 + ... + 2477725.

It is an arithmetic number, because the mean of its divisors is an integer number (2430071280).

Almost surely, 2^121303303000 is an apocalyptic number.

121303303000 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 121303303000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155524561920).

121303303000 is an abundant number, since it is smaller than the sum of its proper divisors (189745820840).

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

121303303000 is a wasteful number, since it uses less digits than its factorization.

121303303000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49706 (or 49692 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 121303303000 its reverse (303303121), we get a palindrome (121606606121).

The spelling of 121303303000 in words is "one hundred twenty-one billion, three hundred three million, three hundred three thousand".