20502200087351 has 2 divisors, whose sum is σ = 20502200087352. Its totient is φ = 20502200087350.

The previous prime is 20502200087321. The next prime is 20502200087357. The reversal of 20502200087351 is 15378000220502.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20502200087351 - 2²⁶ = 20502132978487 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20502200087357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10251100043675 + 10251100043676.

It is an arithmetic number, because the mean of its divisors is an integer number (10251100043676).

Almost surely, 2^{20502200087351} is an apocalyptic number.

20502200087351 is a deficient number, since it is larger than the sum of its proper divisors (1).

20502200087351 is an equidigital number, since it uses as much as digits as its factorization.

20502200087351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 33600, while the sum is 35.

The spelling of 20502200087351 in words is "twenty trillion, five hundred two billion, two hundred million, eighty-seven thousand, three hundred fifty-one".