12132655623121 has 4 divisors (see below), whose sum is σ = 13235624316144. Its totient is φ = 11029686930100.

The previous prime is 12132655623089. The next prime is 12132655623131.

12132655623121 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12132655623121 - 2⁵ = 12132655623089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12132655623131) 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, 551484346495 + ... + 551484346516.

It is an arithmetic number, because the mean of its divisors is an integer number (3308906079036).

Almost surely, 2^{12132655623121} is an apocalyptic number.

12132655623121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12132655623121 is a deficient number, since it is larger than the sum of its proper divisors (1102968693023).

12132655623121 is a wasteful number, since it uses less digits than its factorization.

12132655623121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1102968693022.

The product of its digits is 129600, while the sum is 40.

It can be divided in two parts, 1213265 and 5623121, that added together give a palindrome (6836386).

The spelling of 12132655623121 in words is "twelve trillion, one hundred thirty-two billion, six hundred fifty-five million, six hundred twenty-three thousand, one hundred twenty-one".