51110000101 has 4 divisors (see below), whose sum is σ = 51168014604. Its totient is φ = 51051985600.

The previous prime is 51110000093. The next prime is 51110000119. The reversal of 51110000101 is 10100001115.

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 21569328225 + 29540671876 = 146865^2 + 171874^2 .

It is a cyclic number.

It is not a de Polignac number, because 51110000101 - 2³ = 51110000093 is a prime.

It is a super-2 number, since 2×51110000101² (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 (51110000191) 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, 29005930 + ... + 29007691.

It is an arithmetic number, because the mean of its divisors is an integer number (12792003651).

Almost surely, 2^51110000101 is an apocalyptic number.

It is an amenable number.

51110000101 is a deficient number, since it is larger than the sum of its proper divisors (58014503).

51110000101 is an equidigital number, since it uses as much as digits as its factorization.

51110000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58014502.

The product of its (nonzero) digits is 5, while the sum is 10.

Adding to 51110000101 its reverse (10100001115), we get a palindrome (61210001216).

The spelling of 51110000101 in words is "fifty-one billion, one hundred ten million, one hundred one", and thus it is an aban number.