20344510251371 has 2 divisors, whose sum is σ = 20344510251372. Its totient is φ = 20344510251370.

The previous prime is 20344510251313. The next prime is 20344510251389. The reversal of 20344510251371 is 17315201544302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20344510251371 is a prime.

It is not a weakly prime, because it can be changed into another prime (20344510250371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10172255125685 + 10172255125686.

It is an arithmetic number, because the mean of its divisors is an integer number (10172255125686).

Almost surely, 2^{20344510251371} is an apocalyptic number.

20344510251371 is a deficient number, since it is larger than the sum of its proper divisors (1).

20344510251371 is an equidigital number, since it uses as much as digits as its factorization.

20344510251371 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 38.

Adding to 20344510251371 its reverse (17315201544302), we get a palindrome (37659711795673).

The spelling of 20344510251371 in words is "twenty trillion, three hundred forty-four billion, five hundred ten million, two hundred fifty-one thousand, three hundred seventy-one".