23121011220009 has 8 divisors (see below), whose sum is σ = 30828067789440. Its totient is φ = 15413981065296.

The previous prime is 23121011219987. The next prime is 23121011220029. The reversal of 23121011220009 is 90002211012132.

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

It is not a de Polignac number, because 23121011220009 - 2⁴⁰ = 22021499592233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23121011220029) 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, 4462074 + ... + 8133395.

It is an arithmetic number, because the mean of its divisors is an integer number (3853508473680).

Almost surely, 2^{23121011220009} is an apocalyptic number.

It is an amenable number.

23121011220009 is a deficient number, since it is larger than the sum of its proper divisors (7707056569431).

23121011220009 is a wasteful number, since it uses less digits than its factorization.

23121011220009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13207359.

The product of its (nonzero) digits is 432, while the sum is 24.

The spelling of 23121011220009 in words is "twenty-three trillion, one hundred twenty-one billion, eleven million, two hundred twenty thousand, nine".