56111011101 has 48 divisors (see below), whose sum is σ = 83809814400. Its totient is φ = 36157968000.

The previous prime is 56111011091. The next prime is 56111011141. The reversal of 56111011101 is 10111011165.

It is a happy number.

56111011101 is a `hidden beast` number, since 561 + 1 + 1 + 0 + 1 + 1 + 101 = 666.

It is not a de Polignac number, because 56111011101 - 2⁶ = 56111011037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56111011141) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12899875 + ... + 12904223.

It is an arithmetic number, because the mean of its divisors is an integer number (1746037800).

Almost surely, 2^56111011101 is an apocalyptic number.

It is an amenable number.

56111011101 is a deficient number, since it is larger than the sum of its proper divisors (27698803299).

56111011101 is a wasteful number, since it uses less digits than its factorization.

56111011101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4818 (or 4815 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 18.

Adding to 56111011101 its reverse (10111011165), we get a palindrome (66222022266).

The spelling of 56111011101 in words is "fifty-six billion, one hundred eleven million, eleven thousand, one hundred one".