121013117598 has 16 divisors (see below), whose sum is σ = 242076788496. Its totient is φ = 40329280320.

The previous prime is 121013117593. The next prime is 121013117609. The reversal of 121013117598 is 895711310121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121013117591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2075233 + ... + 2132748.

It is an arithmetic number, because the mean of its divisors is an integer number (15129799281).

Almost surely, 2^121013117598 is an apocalyptic number.

121013117598 is an abundant number, since it is smaller than the sum of its proper divisors (121063670898).

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

121013117598 is a wasteful number, since it uses less digits than its factorization.

121013117598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4212779.

The product of its (nonzero) digits is 15120, while the sum is 39.

The spelling of 121013117598 in words is "one hundred twenty-one billion, thirteen million, one hundred seventeen thousand, five hundred ninety-eight".