121073801387780 has 48 divisors (see below), whose sum is σ = 262530922590720. Its totient is φ = 46854034022400.

The previous prime is 121073801387713. The next prime is 121073801387879. The reversal of 121073801387780 is 87783108370121.

121073801387780 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25395581 + ... + 29783940.

It is an arithmetic number, because the mean of its divisors is an integer number (5469394220640).

Almost surely, 2^{121073801387780} is an apocalyptic number.

121073801387780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121073801387780 is an abundant number, since it is smaller than the sum of its proper divisors (141457121202940).

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

121073801387780 is a wasteful number, since it uses less digits than its factorization.

121073801387780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55183100 (or 55183098 counting only the distinct ones).

The product of its (nonzero) digits is 3161088, while the sum is 56.

The spelling of 121073801387780 in words is "one hundred twenty-one trillion, seventy-three billion, eight hundred one million, three hundred eighty-seven thousand, seven hundred eighty".