51431123122 has 8 divisors (see below), whose sum is σ = 77477787036. Its totient is φ = 25605194112.

The previous prime is 51431123113. The next prime is 51431123153. The reversal of 51431123122 is 22132113415.

51431123122 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 50886787561 + 544335561 = 225581^2 + 23331^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55183143 + ... + 55184074.

Almost surely, 2^51431123122 is an apocalyptic number.

51431123122 is a deficient number, since it is larger than the sum of its proper divisors (26046663914).

51431123122 is a wasteful number, since it uses less digits than its factorization.

51431123122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110367452.

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

Adding to 51431123122 its reverse (22132113415), we get a palindrome (73563236537).

The spelling of 51431123122 in words is "fifty-one billion, four hundred thirty-one million, one hundred twenty-three thousand, one hundred twenty-two".