211112056543 has 2 divisors, whose sum is σ = 211112056544. Its totient is φ = 211112056542.

The previous prime is 211112056513. The next prime is 211112056577. The reversal of 211112056543 is 345650211112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211112056543 - 2²¹ = 211109959391 is a prime.

It is a super-2 number, since 2×211112056543² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211112056513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105556028271 + 105556028272.

It is an arithmetic number, because the mean of its divisors is an integer number (105556028272).

Almost surely, 2^211112056543 is an apocalyptic number.

211112056543 is a deficient number, since it is larger than the sum of its proper divisors (1).

211112056543 is an equidigital number, since it uses as much as digits as its factorization.

211112056543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 31.

Adding to 211112056543 its reverse (345650211112), we get a palindrome (556762267655).

The spelling of 211112056543 in words is "two hundred eleven billion, one hundred twelve million, fifty-six thousand, five hundred forty-three".