121711672320 has 1056 divisors, whose sum is σ = 483891148800. Its totient is φ = 25978208256.

The previous prime is 121711672319. The next prime is 121711672339. The reversal of 121711672320 is 23276117121.

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, 1367546836 + ... + 1367546924.

Almost surely, 2^121711672320 is an apocalyptic number.

121711672320 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 121711672320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (241945574400).

121711672320 is an abundant number, since it is smaller than the sum of its proper divisors (362179476480).

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

121711672320 is a wasteful number, since it uses less digits than its factorization.

121711672320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233 (or 208 counting only the distinct ones).

The product of its (nonzero) digits is 7056, while the sum is 33.

Adding to 121711672320 its reverse (23276117121), we get a palindrome (144987789441).

The spelling of 121711672320 in words is "one hundred twenty-one billion, seven hundred eleven million, six hundred seventy-two thousand, three hundred twenty".