51434231143 has 32 divisors (see below), whose sum is σ = 55578700800. Its totient is φ = 47454615936.

The previous prime is 51434231099. The next prime is 51434231213. The reversal of 51434231143 is 34113243415.

It is a cyclic number.

It is not a de Polignac number, because 51434231143 - 2¹³ = 51434222951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51434231543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 47057305 + ... + 47058397.

It is an arithmetic number, because the mean of its divisors is an integer number (1736834400).

Almost surely, 2^51434231143 is an apocalyptic number.

51434231143 is a deficient number, since it is larger than the sum of its proper divisors (4144469657).

51434231143 is a wasteful number, since it uses less digits than its factorization.

51434231143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1591.

The product of its digits is 17280, while the sum is 31.

Adding to 51434231143 its reverse (34113243415), we get a palindrome (85547474558).

The spelling of 51434231143 in words is "fifty-one billion, four hundred thirty-four million, two hundred thirty-one thousand, one hundred forty-three".