51431011234 has 32 divisors (see below), whose sum is σ = 84527452800. Its totient is φ = 23361004800.

The previous prime is 51431011223. The next prime is 51431011253. The reversal of 51431011234 is 43211013415.

It is a junction number, because it is equal to n+sod(n) for n = 51431011199 and 51431011208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4382827 + ... + 4394545.

It is an arithmetic number, because the mean of its divisors is an integer number (2641482900).

Almost surely, 2^51431011234 is an apocalyptic number.

51431011234 is a deficient number, since it is larger than the sum of its proper divisors (33096441566).

51431011234 is a wasteful number, since it uses less digits than its factorization.

51431011234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16218.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 51431011234 its reverse (43211013415), we get a palindrome (94642024649).

The spelling of 51431011234 in words is "fifty-one billion, four hundred thirty-one million, eleven thousand, two hundred thirty-four".