121002100323109 has 8 divisors (see below), whose sum is σ = 121816983115800. Its totient is φ = 120187254706176.

The previous prime is 121002100323089. The next prime is 121002100323239. The reversal of 121002100323109 is 901323001200121.

It can be written as a sum of positive squares in 4 ways, for example, as 4263799620609 + 116738300702500 = 2064897^2 + 10804550^2 .

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 121002100323109 - 2²⁵ = 121002066768677 is a prime.

It is a super-3 number, since 3×121002100323109³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121002100333109) 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, 2746812 + ... + 15797125.

It is an arithmetic number, because the mean of its divisors is an integer number (15227122889475).

Almost surely, 2^{121002100323109} is an apocalyptic number.

It is an amenable number.

121002100323109 is a deficient number, since it is larger than the sum of its proper divisors (814882792691).

121002100323109 is a wasteful number, since it uses less digits than its factorization.

121002100323109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18587879.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 121002100323109 in words is "one hundred twenty-one trillion, two billion, one hundred million, three hundred twenty-three thousand, one hundred nine".