12132123213031 has 4 divisors (see below), whose sum is σ = 12173529777192. Its totient is φ = 12090716648872.

The previous prime is 12132123212981. The next prime is 12132123213037. The reversal of 12132123213031 is 13031232123121.

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

It is a cyclic number.

It is not a de Polignac number, because 12132123213031 - 2¹¹ = 12132123210983 is a prime.

It is a super-2 number, since 2×12132123213031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12132123212987 and 12132123213005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132123213037) 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, 20703281641 + ... + 20703282226.

It is an arithmetic number, because the mean of its divisors is an integer number (3043382444298).

Almost surely, 2^{12132123213031} is an apocalyptic number.

12132123213031 is a deficient number, since it is larger than the sum of its proper divisors (41406564161).

12132123213031 is an equidigital number, since it uses as much as digits as its factorization.

12132123213031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41406564160.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12132123213031 its reverse (13031232123121), we get a palindrome (25163355336152).

The spelling of 12132123213031 in words is "twelve trillion, one hundred thirty-two billion, one hundred twenty-three million, two hundred thirteen thousand, thirty-one".