211112134100056 has 16 divisors (see below), whose sum is σ = 452383144500240. Its totient is φ = 90476628900000.

The previous prime is 211112134100033. The next prime is 211112134100057. The reversal of 211112134100056 is 650001431211112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 211112134099997 and 211112134100033.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211112134100057) 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, 1884929768695 + ... + 1884929768806.

It is an arithmetic number, because the mean of its divisors is an integer number (28273946531265).

Almost surely, 2^{211112134100056} is an apocalyptic number.

It is an amenable number.

211112134100056 is an abundant number, since it is smaller than the sum of its proper divisors (241271010400184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211112134100056 is a wasteful number, since it uses less digits than its factorization.

211112134100056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3769859537514 (or 3769859537510 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 28.

Adding to 211112134100056 its reverse (650001431211112), we get a palindrome (861113565311168).

The spelling of 211112134100056 in words is "two hundred eleven trillion, one hundred twelve billion, one hundred thirty-four million, one hundred thousand, fifty-six".