20243827891711 has 2 divisors, whose sum is σ = 20243827891712. Its totient is φ = 20243827891710.

The previous prime is 20243827891699. The next prime is 20243827891753. The reversal of 20243827891711 is 11719872834202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20243827891711 - 2⁴³ = 11447734869503 is a prime.

It is a super-2 number, since 2×20243827891711² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20243827861711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10121913945855 + 10121913945856.

It is an arithmetic number, because the mean of its divisors is an integer number (10121913945856).

Almost surely, 2^{20243827891711} is an apocalyptic number.

20243827891711 is a deficient number, since it is larger than the sum of its proper divisors (1).

20243827891711 is an equidigital number, since it uses as much as digits as its factorization.

20243827891711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The spelling of 20243827891711 in words is "twenty trillion, two hundred forty-three billion, eight hundred twenty-seven million, eight hundred ninety-one thousand, seven hundred eleven".