51119442111 has 8 divisors (see below), whose sum is σ = 68344977664. Its totient is φ = 33986767320.

The previous prime is 51119442053. The next prime is 51119442131. The reversal of 51119442111 is 11124491115.

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

It is not a de Polignac number, because 51119442111 - 2¹⁹ = 51118917823 is a prime.

It is a super-2 number, since 2×51119442111² (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 (51119442131) 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, 23213905 + ... + 23216106.

It is an arithmetic number, because the mean of its divisors is an integer number (8543122208).

Almost surely, 2^51119442111 is an apocalyptic number.

51119442111 is a deficient number, since it is larger than the sum of its proper divisors (17225535553).

51119442111 is a wasteful number, since it uses less digits than its factorization.

51119442111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46430381.

The product of its digits is 1440, while the sum is 30.

The spelling of 51119442111 in words is "fifty-one billion, one hundred nineteen million, four hundred forty-two thousand, one hundred eleven".