51342051143 has 4 divisors (see below), whose sum is σ = 51600051600. Its totient is φ = 51084050688.

The previous prime is 51342051119. The next prime is 51342051179. The reversal of 51342051143 is 34115024315.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34115024315 = 5 ⋅6823004863.

It is a cyclic number.

It is not a de Polignac number, because 51342051143 - 2¹⁰ = 51342050119 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 (51342051193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 128999930 + ... + 129000327.

It is an arithmetic number, because the mean of its divisors is an integer number (12900012900).

Almost surely, 2^51342051143 is an apocalyptic number.

51342051143 is a deficient number, since it is larger than the sum of its proper divisors (258000457).

51342051143 is a wasteful number, since it uses less digits than its factorization.

51342051143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258000456.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 51342051143 its reverse (34115024315), we get a palindrome (85457075458).

The spelling of 51342051143 in words is "fifty-one billion, three hundred forty-two million, fifty-one thousand, one hundred forty-three".