12112811321158 has 32 divisors (see below), whose sum is σ = 18473754055680. Its totient is φ = 5955228876960.

The previous prime is 12112811321071. The next prime is 12112811321159. The reversal of 12112811321158 is 85112311821121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12112811321159) 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, 194386635 + ... + 194448937.

It is an arithmetic number, because the mean of its divisors is an integer number (577304814240).

Almost surely, 2^{12112811321158} is an apocalyptic number.

12112811321158 is a deficient number, since it is larger than the sum of its proper divisors (6360942734522).

12112811321158 is a wasteful number, since it uses less digits than its factorization.

12112811321158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64972.

The product of its digits is 7680, while the sum is 37.

The spelling of 12112811321158 in words is "twelve trillion, one hundred twelve billion, eight hundred eleven million, three hundred twenty-one thousand, one hundred fifty-eight".