51142324331 has 4 divisors (see below), whose sum is σ = 58448370672. Its totient is φ = 43836277992.

The previous prime is 51142324249. The next prime is 51142324379. The reversal of 51142324331 is 13342324115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51142324331 - 2¹⁰ = 51142323307 is a prime.

It is a super-2 number, since 2×51142324331² (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 = 51142324294 and 51142324303.

It is not an unprimeable number, because it can be changed into a prime (51142384331) 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 3 ways as a sum of consecutive naturals, for example, 3653023160 + ... + 3653023173.

It is an arithmetic number, because the mean of its divisors is an integer number (14612092668).

Almost surely, 2^51142324331 is an apocalyptic number.

51142324331 is a deficient number, since it is larger than the sum of its proper divisors (7306046341).

51142324331 is an equidigital number, since it uses as much as digits as its factorization.

51142324331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7306046340.

The product of its digits is 8640, while the sum is 29.

Adding to 51142324331 its reverse (13342324115), we get a palindrome (64484648446).

The spelling of 51142324331 in words is "fifty-one billion, one hundred forty-two million, three hundred twenty-four thousand, three hundred thirty-one".