51011100011 has 8 divisors (see below), whose sum is σ = 52260015024. Its totient is φ = 49762410880.

The previous prime is 51011099989. The next prime is 51011100037. The reversal of 51011100011 is 11000111015.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51011100011 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51011099965 and 51011100001.

It is not an unprimeable number, because it can be changed into a prime (51011102011) 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 7 ways as a sum of consecutive naturals, for example, 457196 + ... + 557718.

It is an arithmetic number, because the mean of its divisors is an integer number (6532501878).

Almost surely, 2^51011100011 is an apocalyptic number.

51011100011 is a deficient number, since it is larger than the sum of its proper divisors (1248915013).

51011100011 is a wasteful number, since it uses less digits than its factorization.

51011100011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112941.

The product of its (nonzero) digits is 5, while the sum is 11.

Adding to 51011100011 its reverse (11000111015), we get a palindrome (62011211026).

The spelling of 51011100011 in words is "fifty-one billion, eleven million, one hundred thousand, eleven".