12311004091 has 4 divisors (see below), whose sum is σ = 12426060312. Its totient is φ = 12195947872.

The previous prime is 12311004089. The next prime is 12311004109. The reversal of 12311004091 is 19040011321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19040011321 = 19 ⋅1002105859.

It is a cyclic number.

It is not a de Polignac number, because 12311004091 - 2¹ = 12311004089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311004691) 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, 57527950 + ... + 57528163.

It is an arithmetic number, because the mean of its divisors is an integer number (3106515078).

Almost surely, 2^12311004091 is an apocalyptic number.

12311004091 is a deficient number, since it is larger than the sum of its proper divisors (115056221).

12311004091 is a wasteful number, since it uses less digits than its factorization.

12311004091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115056220.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 12311004091 in words is "twelve billion, three hundred eleven million, four thousand, ninety-one".