51106000111 has 4 divisors (see below), whose sum is σ = 51106519672. Its totient is φ = 51105480552.

The previous prime is 51106000093. The next prime is 51106000189. The reversal of 51106000111 is 11100060115.

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: 11100060115 = 5 ⋅2220012023.

It is a cyclic number.

It is not a de Polignac number, because 51106000111 - 2¹³ = 51105991919 is a prime.

It is a super-2 number, since 2×51106000111² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51106000711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62085 + ... + 325678.

It is an arithmetic number, because the mean of its divisors is an integer number (12776629918).

Almost surely, 2^51106000111 is an apocalyptic number.

51106000111 is a deficient number, since it is larger than the sum of its proper divisors (519561).

51106000111 is a wasteful number, since it uses less digits than its factorization.

51106000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519560.

The product of its (nonzero) digits is 30, while the sum is 16.

Adding to 51106000111 its reverse (11100060115), we get a palindrome (62206060226).

The spelling of 51106000111 in words is "fifty-one billion, one hundred six million, one hundred eleven", and thus it is an aban number.