20348579049143 has 2 divisors, whose sum is σ = 20348579049144. Its totient is φ = 20348579049142.

The previous prime is 20348579049109. The next prime is 20348579049173. The reversal of 20348579049143 is 34194097584302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20348579049143 - 2²⁰ = 20348578000567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20348579049103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10174289524571 + 10174289524572.

It is an arithmetic number, because the mean of its divisors is an integer number (10174289524572).

Almost surely, 2^{20348579049143} is an apocalyptic number.

20348579049143 is a deficient number, since it is larger than the sum of its proper divisors (1).

20348579049143 is an equidigital number, since it uses as much as digits as its factorization.

20348579049143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26127360, while the sum is 59.

The spelling of 20348579049143 in words is "twenty trillion, three hundred forty-eight billion, five hundred seventy-nine million, forty-nine thousand, one hundred forty-three".