51116204123 has 8 divisors (see below), whose sum is σ = 52109679888. Its totient is φ = 50131719424.

The previous prime is 51116204107. The next prime is 51116204143. The reversal of 51116204123 is 32140261115.

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

It is a cyclic number.

It is not a de Polignac number, because 51116204123 - 2⁴ = 51116204107 is a prime.

It is a super-2 number, since 2×51116204123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51116204092 and 51116204101.

It is not an unprimeable number, because it can be changed into a prime (51116204143) by changing a digit.

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, 2236286 + ... + 2259027.

It is an arithmetic number, because the mean of its divisors is an integer number (6513709986).

Almost surely, 2^51116204123 is an apocalyptic number.

51116204123 is a deficient number, since it is larger than the sum of its proper divisors (993475765).

51116204123 is a wasteful number, since it uses less digits than its factorization.

51116204123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4495533.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 51116204123 its reverse (32140261115), we get a palindrome (83256465238).

The spelling of 51116204123 in words is "fifty-one billion, one hundred sixteen million, two hundred four thousand, one hundred twenty-three".