12911411911231 has 4 divisors (see below), whose sum is σ = 12919386843000. Its totient is φ = 12903436979464.

The previous prime is 12911411911081. The next prime is 12911411911247. The reversal of 12911411911231 is 13211911411921.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12911411911231 is a prime.

It is a super-2 number, since 2×12911411911231² (a number of 27 digits) contains 22 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 (12911411911331) 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, 3987463456 + ... + 3987466693.

It is an arithmetic number, because the mean of its divisors is an integer number (3229846710750).

Almost surely, 2^{12911411911231} is an apocalyptic number.

12911411911231 is a deficient number, since it is larger than the sum of its proper divisors (7974931769).

12911411911231 is an equidigital number, since it uses as much as digits as its factorization.

12911411911231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7974931768.

The product of its digits is 3888, while the sum is 37.

The spelling of 12911411911231 in words is "twelve trillion, nine hundred eleven billion, four hundred eleven million, nine hundred eleven thousand, two hundred thirty-one".