121300021123320 has 384 divisors, whose sum is σ = 410745377433600. Its totient is φ = 28608778598400.

The previous prime is 121300021123219. The next prime is 121300021123399. The reversal of 121300021123320 is 23321120003121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 76256505 + ... + 77830935.

It is an arithmetic number, because the mean of its divisors is an integer number (1069649420400).

Almost surely, 2^{121300021123320} is an apocalyptic number.

121300021123320 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 121300021123320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205372688716800).

121300021123320 is an abundant number, since it is smaller than the sum of its proper divisors (289445356310280).

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

121300021123320 is a wasteful number, since it uses less digits than its factorization.

121300021123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574631 (or 1574614 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 121300021123320 its reverse (23321120003121), we get a palindrome (144621141126441).

The spelling of 121300021123320 in words is "one hundred twenty-one trillion, three hundred billion, twenty-one million, one hundred twenty-three thousand, three hundred twenty".