121101558361 has 8 divisors (see below), whose sum is σ = 140297696384. Its totient is φ = 102379399200.

The previous prime is 121101558353. The next prime is 121101558421. The reversal of 121101558361 is 163855101121.

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 121101558361 - 2³ = 121101558353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121101558301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118494165 + ... + 118495186.

It is an arithmetic number, because the mean of its divisors is an integer number (17537212048).

Almost surely, 2^121101558361 is an apocalyptic number.

It is an amenable number.

121101558361 is a deficient number, since it is larger than the sum of its proper divisors (19196138023).

121101558361 is an equidigital number, since it uses as much as digits as its factorization.

121101558361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236989431.

The product of its (nonzero) digits is 7200, while the sum is 34.

Adding to 121101558361 its reverse (163855101121), we get a palindrome (284956659482).

The spelling of 121101558361 in words is "one hundred twenty-one billion, one hundred one million, five hundred fifty-eight thousand, three hundred sixty-one".