121376841280 has 56 divisors (see below), whose sum is σ = 298995129720. Its totient is φ = 46876569600.

The previous prime is 121376841269. The next prime is 121376841317. The reversal of 121376841280 is 82148673121.

It can be written as a sum of positive squares in 4 ways, for example, as 55591936 + 121321249344 = 7456^2 + 348312^2 .

It is a super-2 number, since 2×121376841280² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6530421 + ... + 6548980.

It is an arithmetic number, because the mean of its divisors is an integer number (5339198745).

Almost surely, 2^121376841280 is an apocalyptic number.

121376841280 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121376841280 is an abundant number, since it is smaller than the sum of its proper divisors (177618288440).

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

121376841280 is a wasteful number, since it uses less digits than its factorization.

121376841280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13079447 (or 13079437 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The spelling of 121376841280 in words is "one hundred twenty-one billion, three hundred seventy-six million, eight hundred forty-one thousand, two hundred eighty".