13142310531421 has 2 divisors, whose sum is σ = 13142310531422. Its totient is φ = 13142310531420.

The previous prime is 13142310531419. The next prime is 13142310531473. The reversal of 13142310531421 is 12413501324131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7018318922521 + 6123991608900 = 2649211^2 + 2474670^2 .

It is a cyclic number.

It is not a de Polignac number, because 13142310531421 - 2¹ = 13142310531419 is a prime.

It is a super-2 number, since 2×13142310531421² (a number of 27 digits) contains 22 as substring.

Together with 13142310531419, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13142310561421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6571155265710 + 6571155265711.

It is an arithmetic number, because the mean of its divisors is an integer number (6571155265711).

Almost surely, 2^{13142310531421} is an apocalyptic number.

It is an amenable number.

13142310531421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13142310531421 is an equidigital number, since it uses as much as digits as its factorization.

13142310531421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 13142310531421 its reverse (12413501324131), we get a palindrome (25555811855552).

The spelling of 13142310531421 in words is "thirteen trillion, one hundred forty-two billion, three hundred ten million, five hundred thirty-one thousand, four hundred twenty-one".