121031300304 has 400 divisors, whose sum is σ = 374499840000. Its totient is φ = 37655684352.

The previous prime is 121031300261. The next prime is 121031300323. The reversal of 121031300304 is 403003130121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 242547447 + ... + 242547945.

It is an arithmetic number, because the mean of its divisors is an integer number (936249600).

Almost surely, 2^121031300304 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121031300304, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187249920000).

121031300304 is an abundant number, since it is smaller than the sum of its proper divisors (253468539696).

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

121031300304 is a wasteful number, since it uses less digits than its factorization.

121031300304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 724 (or 709 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121031300304 its reverse (403003130121), we get a palindrome (524034430425).

The spelling of 121031300304 in words is "one hundred twenty-one billion, thirty-one million, three hundred thousand, three hundred four".