12231113113021 has 4 divisors (see below), whose sum is σ = 13343032486944. Its totient is φ = 11119193739100.

The previous prime is 12231113113003. The next prime is 12231113113039. The reversal of 12231113113021 is 12031131113221.

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 an interprime number because it is at equal distance from previous prime (12231113113003) and next prime (12231113113039).

It is a cyclic number.

It is not a de Polignac number, because 12231113113021 - 2⁷ = 12231113112893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12231113112983 and 12231113113001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231113113061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 555959686945 + ... + 555959686966.

It is an arithmetic number, because the mean of its divisors is an integer number (3335758121736).

Almost surely, 2^{12231113113021} is an apocalyptic number.

12231113113021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12231113113021 is a deficient number, since it is larger than the sum of its proper divisors (1111919373923).

12231113113021 is a wasteful number, since it uses less digits than its factorization.

12231113113021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111919373922.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 12231113113021 its reverse (12031131113221), we get a palindrome (24262244226242).

The spelling of 12231113113021 in words is "twelve trillion, two hundred thirty-one billion, one hundred thirteen million, one hundred thirteen thousand, twenty-one".