11701202543 has 4 divisors (see below), whose sum is σ = 11701469640. Its totient is φ = 11700935448.

The previous prime is 11701202537. The next prime is 11701202609. The reversal of 11701202543 is 34520210711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34520210711 = 7 ⋅4931458673.

It is a cyclic number.

It is not a de Polignac number, because 11701202543 - 2²⁴ = 11684425327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11701202143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50705 + ... + 161162.

It is an arithmetic number, because the mean of its divisors is an integer number (2925367410).

Almost surely, 2^11701202543 is an apocalyptic number.

11701202543 is a deficient number, since it is larger than the sum of its proper divisors (267097).

11701202543 is an equidigital number, since it uses as much as digits as its factorization.

11701202543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267096.

The product of its (nonzero) digits is 1680, while the sum is 26.

The spelling of 11701202543 in words is "eleven billion, seven hundred one million, two hundred two thousand, five hundred forty-three".