2116710505243 has 2 divisors, whose sum is σ = 2116710505244. Its totient is φ = 2116710505242.

The previous prime is 2116710505109. The next prime is 2116710505291. The reversal of 2116710505243 is 3425050176112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2116710505243 - 2¹³ = 2116710497051 is a prime.

It is not a weakly prime, because it can be changed into another prime (2116710505043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1058355252621 + 1058355252622.

It is an arithmetic number, because the mean of its divisors is an integer number (1058355252622).

Almost surely, 2^{2116710505243} is an apocalyptic number.

2116710505243 is a deficient number, since it is larger than the sum of its proper divisors (1).

2116710505243 is an equidigital number, since it uses as much as digits as its factorization.

2116710505243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 37.

The spelling of 2116710505243 in words is "two trillion, one hundred sixteen billion, seven hundred ten million, five hundred five thousand, two hundred forty-three".