121118305725488 has 20 divisors (see below), whose sum is σ = 235977704596440. Its totient is φ = 60220833571584.

The previous prime is 121118305725481. The next prime is 121118305725511. The reversal of 121118305725488 is 884527503811121.

It is not an unprimeable number, because it can be changed into a prime (121118305725481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21144952745 + ... + 21144958472.

It is an arithmetic number, because the mean of its divisors is an integer number (11798885229822).

Almost surely, 2^{121118305725488} is an apocalyptic number.

It is an amenable number.

121118305725488 is a deficient number, since it is larger than the sum of its proper divisors (114859398870952).

121118305725488 is a wasteful number, since it uses less digits than its factorization.

121118305725488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42289911404 (or 42289911398 counting only the distinct ones).

The product of its (nonzero) digits is 4300800, while the sum is 56.

The spelling of 121118305725488 in words is "one hundred twenty-one trillion, one hundred eighteen billion, three hundred five million, seven hundred twenty-five thousand, four hundred eighty-eight".