51031651330131 has 4 divisors (see below), whose sum is σ = 68042201773512. Its totient is φ = 34021100886752.

The previous prime is 51031651330117. The next prime is 51031651330169. The reversal of 51031651330131 is 13103315613015.

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 51031651330131 - 2⁹ = 51031651329619 is a prime.

It is a super-3 number, since 3×51031651330131³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 51031651330092 and 51031651330101.

It is not an unprimeable number, because it can be changed into a prime (51031651330111) 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, 8505275221686 + ... + 8505275221691.

It is an arithmetic number, because the mean of its divisors is an integer number (17010550443378).

Almost surely, 2^{51031651330131} is an apocalyptic number.

51031651330131 is a deficient number, since it is larger than the sum of its proper divisors (17010550443381).

51031651330131 is a wasteful number, since it uses less digits than its factorization.

51031651330131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17010550443380.

The product of its (nonzero) digits is 12150, while the sum is 33.

Adding to 51031651330131 its reverse (13103315613015), we get a palindrome (64134966943146).

The spelling of 51031651330131 in words is "fifty-one trillion, thirty-one billion, six hundred fifty-one million, three hundred thirty thousand, one hundred thirty-one".