211113041947 has 4 divisors (see below), whose sum is σ = 211125180456. Its totient is φ = 211100903440.

The previous prime is 211113041941. The next prime is 211113041963. The reversal of 211113041947 is 749140311112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211113041947 - 2¹¹ = 211113039899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211113041941) 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, 6043129 + ... + 6077962.

It is an arithmetic number, because the mean of its divisors is an integer number (52781295114).

Almost surely, 2^211113041947 is an apocalyptic number.

211113041947 is a deficient number, since it is larger than the sum of its proper divisors (12138509).

211113041947 is a wasteful number, since it uses less digits than its factorization.

211113041947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12138508.

The product of its (nonzero) digits is 6048, while the sum is 34.

The spelling of 211113041947 in words is "two hundred eleven billion, one hundred thirteen million, forty-one thousand, nine hundred forty-seven".