51111012110 has 16 divisors (see below), whose sum is σ = 93295595232. Its totient is φ = 20156455200.

The previous prime is 51111012079. The next prime is 51111012133. The reversal of 51111012110 is 1121011115.

It is a super-2 number, since 2×51111012110² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35992961 + ... + 35994380.

It is an arithmetic number, because the mean of its divisors is an integer number (5830974702).

Almost surely, 2^51111012110 is an apocalyptic number.

51111012110 is a deficient number, since it is larger than the sum of its proper divisors (42184583122).

51111012110 is a wasteful number, since it uses less digits than its factorization.

51111012110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71987419.

The product of its (nonzero) digits is 10, while the sum is 14.

Adding to 51111012110 its reverse (1121011115), we get a palindrome (52232023225).

The spelling of 51111012110 in words is "fifty-one billion, one hundred eleven million, twelve thousand, one hundred ten".