56600011121 has 4 divisors (see below), whose sum is σ = 56601770100. Its totient is φ = 56598252144.

The previous prime is 56600011009. The next prime is 56600011151. The reversal of 56600011121 is 12111000665.

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

It can be written as a sum of positive squares in 2 ways, for example, as 11258271025 + 45341740096 = 106105^2 + 212936^2 .

It is a cyclic number.

It is not a de Polignac number, because 56600011121 - 2¹⁰ = 56600010097 is a prime.

It is a super-2 number, since 2×56600011121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (56600011151) 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, 830306 + ... + 895883.

It is an arithmetic number, because the mean of its divisors is an integer number (14150442525).

Almost surely, 2^56600011121 is an apocalyptic number.

It is an amenable number.

56600011121 is a deficient number, since it is larger than the sum of its proper divisors (1758979).

56600011121 is a wasteful number, since it uses less digits than its factorization.

56600011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1758978.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 56600011121 its reverse (12111000665), we get a palindrome (68711011786).

The spelling of 56600011121 in words is "fifty-six billion, six hundred million, eleven thousand, one hundred twenty-one".