51110610111 has 24 divisors (see below), whose sum is σ = 80556443136. Its totient is φ = 30969007440.

The previous prime is 51110609971. The next prime is 51110610113. The reversal of 51110610111 is 11101601115.

It is a happy number.

51110610111 is a `hidden beast` number, since 51 + 1 + 1 + 0 + 610 + 1 + 1 + 1 = 666.

It is not a de Polignac number, because 51110610111 - 2²² = 51106415807 is a prime.

It is a super-2 number, since 2×51110610111² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51110610113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390706 + ... + 504848.

It is an arithmetic number, because the mean of its divisors is an integer number (3356518464).

Almost surely, 2^51110610111 is an apocalyptic number.

51110610111 is a deficient number, since it is larger than the sum of its proper divisors (29445833025).

51110610111 is a wasteful number, since it uses less digits than its factorization.

51110610111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118683 (or 118680 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 18.

The spelling of 51110610111 in words is "fifty-one billion, one hundred ten million, six hundred ten thousand, one hundred eleven".