121017319488 has 112 divisors (see below), whose sum is σ = 383135388160. Its totient is φ = 37236091392.

The previous prime is 121017319441. The next prime is 121017319513. The reversal of 121017319488 is 884913710121.

It is a happy number.

121017319488 is a `hidden beast` number, since 1 + 210 + 173 + 194 + 88 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2671120 + ... + 2716047.

It is an arithmetic number, because the mean of its divisors is an integer number (3420851680).

Almost surely, 2^121017319488 is an apocalyptic number.

121017319488 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

121017319488 is an abundant number, since it is smaller than the sum of its proper divisors (262118068672).

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

121017319488 is a wasteful number, since it uses less digits than its factorization.

121017319488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5387201 (or 5387185 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 45.

The spelling of 121017319488 in words is "one hundred twenty-one billion, seventeen million, three hundred nineteen thousand, four hundred eighty-eight".