12743624711381 has 2 divisors, whose sum is σ = 12743624711382. Its totient is φ = 12743624711380.

The previous prime is 12743624711369. The next prime is 12743624711401. The reversal of 12743624711381 is 18311742634721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12716113513156 + 27511198225 = 3565966^2 + 165865^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12743624711381 is a prime.

It is a super-2 number, since 2×12743624711381² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12743624711281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6371812355690 + 6371812355691.

It is an arithmetic number, because the mean of its divisors is an integer number (6371812355691).

Almost surely, 2^{12743624711381} is an apocalyptic number.

It is an amenable number.

12743624711381 is a deficient number, since it is larger than the sum of its proper divisors (1).

12743624711381 is an equidigital number, since it uses as much as digits as its factorization.

12743624711381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1354752, while the sum is 50.

The spelling of 12743624711381 in words is "twelve trillion, seven hundred forty-three billion, six hundred twenty-four million, seven hundred eleven thousand, three hundred eighty-one".