10013121109 has 4 divisors (see below), whose sum is σ = 10089557280. Its totient is φ = 9936684940.

The previous prime is 10013121067. The next prime is 10013121119. The reversal of 10013121109 is 90112131001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10013121109 - 2¹⁷ = 10012990037 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 (10013121119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38217889 + ... + 38218150.

It is an arithmetic number, because the mean of its divisors is an integer number (2522389320).

Almost surely, 2^10013121109 is an apocalyptic number.

It is an amenable number.

10013121109 is a deficient number, since it is larger than the sum of its proper divisors (76436171).

10013121109 is an equidigital number, since it uses as much as digits as its factorization.

10013121109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76436170.

The product of its (nonzero) digits is 54, while the sum is 19.

The spelling of 10013121109 in words is "ten billion, thirteen million, one hundred twenty-one thousand, one hundred nine".