121098139589 has 8 divisors (see below), whose sum is σ = 138474733248. Its totient is φ = 103740760800.

The previous prime is 121098139553. The next prime is 121098139607. The reversal of 121098139589 is 985931890121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121098139589 - 2²⁴ = 121081362373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121098139189) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4790207 + ... + 4815420.

It is an arithmetic number, because the mean of its divisors is an integer number (17309341656).

Almost surely, 2^121098139589 is an apocalyptic number.

It is an amenable number.

121098139589 is a deficient number, since it is larger than the sum of its proper divisors (17376593659).

121098139589 is an equidigital number, since it uses as much as digits as its factorization.

121098139589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9607435.

The product of its (nonzero) digits is 1399680, while the sum is 56.

The spelling of 121098139589 in words is "one hundred twenty-one billion, ninety-eight million, one hundred thirty-nine thousand, five hundred eighty-nine".