12123132231013 has 2 divisors, whose sum is σ = 12123132231014. Its totient is φ = 12123132231012.

The previous prime is 12123132230981. The next prime is 12123132231017. The reversal of 12123132231013 is 31013223132121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10397161638369 + 1725970592644 = 3224463^2 + 1313762^2 .

It is a cyclic number.

It is not a de Polignac number, because 12123132231013 - 2⁵ = 12123132230981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12123132231017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6061566115506 + 6061566115507.

It is an arithmetic number, because the mean of its divisors is an integer number (6061566115507).

Almost surely, 2^{12123132231013} is an apocalyptic number.

It is an amenable number.

12123132231013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12123132231013 is an equidigital number, since it uses as much as digits as its factorization.

12123132231013 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12123132231013 its reverse (31013223132121), we get a palindrome (43136355363134).

The spelling of 12123132231013 in words is "twelve trillion, one hundred twenty-three billion, one hundred thirty-two million, two hundred thirty-one thousand, thirteen".