56103161131 has 4 divisors (see below), whose sum is σ = 56103653200. Its totient is φ = 56102669064.

The previous prime is 56103161129. The next prime is 56103161137. The reversal of 56103161131 is 13116130165.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 13116130165 = 5 ⋅2623226033.

It is a cyclic number.

It is not a de Polignac number, because 56103161131 - 2¹ = 56103161129 is a prime.

It is a super-2 number, since 2×56103161131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 56103161131.

It is not an unprimeable number, because it can be changed into a prime (56103161137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23185 + ... + 335773.

It is an arithmetic number, because the mean of its divisors is an integer number (14025913300).

Almost surely, 2^56103161131 is an apocalyptic number.

56103161131 is a deficient number, since it is larger than the sum of its proper divisors (492069).

56103161131 is a wasteful number, since it uses less digits than its factorization.

56103161131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492068.

The product of its (nonzero) digits is 1620, while the sum is 28.

Adding to 56103161131 its reverse (13116130165), we get a palindrome (69219291296).

The spelling of 56103161131 in words is "fifty-six billion, one hundred three million, one hundred sixty-one thousand, one hundred thirty-one".