12021102323231 has 2 divisors, whose sum is σ = 12021102323232. Its totient is φ = 12021102323230.

The previous prime is 12021102323143. The next prime is 12021102323249. The reversal of 12021102323231 is 13232320112021.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12021102323231 is a prime.

It is a super-2 number, since 2×12021102323231² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12021102323197 and 12021102323206.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12021102323291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010551161615 + 6010551161616.

It is an arithmetic number, because the mean of its divisors is an integer number (6010551161616).

Almost surely, 2^{12021102323231} is an apocalyptic number.

12021102323231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021102323231 is an equidigital number, since it uses as much as digits as its factorization.

12021102323231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12021102323231 its reverse (13232320112021), we get a palindrome (25253422435252).

The spelling of 12021102323231 in words is "twelve trillion, twenty-one billion, one hundred two million, three hundred twenty-three thousand, two hundred thirty-one".