51101011105 has 8 divisors (see below), whose sum is σ = 61928354664. Its totient is φ = 40476048000.

The previous prime is 51101011061. The next prime is 51101011109. The reversal of 51101011105 is 50111010115.

It can be written as a sum of positive squares in 4 ways, for example, as 17906721856 + 33194289249 = 133816^2 + 182193^2 .

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

It is not a de Polignac number, because 51101011105 - 2⁹ = 51101010593 is a prime.

It is a super-2 number, since 2×51101011105² (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 (51101011109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50594556 + ... + 50595565.

It is an arithmetic number, because the mean of its divisors is an integer number (7741044333).

Almost surely, 2^51101011105 is an apocalyptic number.

It is an amenable number.

51101011105 is a deficient number, since it is larger than the sum of its proper divisors (10827343559).

51101011105 is a wasteful number, since it uses less digits than its factorization.

51101011105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101190227.

The product of its (nonzero) digits is 25, while the sum is 16.

The spelling of 51101011105 in words is "fifty-one billion, one hundred one million, eleven thousand, one hundred five".