12112031121321 has 16 divisors (see below), whose sum is σ = 16276107754368. Its totient is φ = 8011499702400.

The previous prime is 12112031121301. The next prime is 12112031121329. The reversal of 12112031121321 is 12312113021121.

It is not a de Polignac number, because 12112031121321 - 2¹³ = 12112031113129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12112031121329) 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, 22072500 + ... + 22614581.

It is an arithmetic number, because the mean of its divisors is an integer number (1017256734648).

Almost surely, 2^{12112031121321} is an apocalyptic number.

It is an amenable number.

12112031121321 is a deficient number, since it is larger than the sum of its proper divisors (4164076633047).

12112031121321 is a wasteful number, since it uses less digits than its factorization.

12112031121321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44687792.

The product of its (nonzero) digits is 144, while the sum is 21.

Adding to 12112031121321 its reverse (12312113021121), we get a palindrome (24424144142442).

The spelling of 12112031121321 in words is "twelve trillion, one hundred twelve billion, thirty-one million, one hundred twenty-one thousand, three hundred twenty-one".