13242356381 has 2 divisors, whose sum is σ = 13242356382. Its totient is φ = 13242356380.

The previous prime is 13242356377. The next prime is 13242356441. The reversal of 13242356381 is 18365324231.

13242356381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10210092025 + 3032264356 = 101045^2 + 55066^2 .

It is a cyclic number.

It is not a de Polignac number, because 13242356381 - 2² = 13242356377 is a prime.

It is a super-2 number, since 2×13242356381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13242356321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6621178190 + 6621178191.

It is an arithmetic number, because the mean of its divisors is an integer number (6621178191).

Almost surely, 2^13242356381 is an apocalyptic number.

It is an amenable number.

13242356381 is a deficient number, since it is larger than the sum of its proper divisors (1).

13242356381 is an equidigital number, since it uses as much as digits as its factorization.

13242356381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 103680, while the sum is 38.

The spelling of 13242356381 in words is "thirteen billion, two hundred forty-two million, three hundred fifty-six thousand, three hundred eighty-one".