12311012111109 has 16 divisors (see below), whose sum is σ = 17402139763200. Its totient is φ = 7727923903680.

The previous prime is 12311012111071. The next prime is 12311012111143. The reversal of 12311012111109 is 90111121011321.

It is not a de Polignac number, because 12311012111109 - 2¹¹ = 12311012109061 is a prime.

It is a super-2 number, since 2×12311012111109² (a number of 27 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311012111009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1788867834 + ... + 1788874715.

It is an arithmetic number, because the mean of its divisors is an integer number (1087633735200).

Almost surely, 2^{12311012111109} is an apocalyptic number.

It is an amenable number.

12311012111109 is a deficient number, since it is larger than the sum of its proper divisors (5091127652091).

12311012111109 is a wasteful number, since it uses less digits than its factorization.

12311012111109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3577742620.

The product of its (nonzero) digits is 108, while the sum is 24.

The spelling of 12311012111109 in words is "twelve trillion, three hundred eleven billion, twelve million, one hundred eleven thousand, one hundred nine".