51352231131 has 12 divisors (see below), whose sum is σ = 75220170480. Its totient is φ = 33752639760.

The previous prime is 51352231127. The next prime is 51352231157. The reversal of 51352231131 is 13113225315.

51352231131 is a `hidden beast` number, since 5 + 1 + 3 + 522 + 3 + 1 + 131 = 666.

It is not a de Polignac number, because 51352231131 - 2² = 51352231127 is a prime.

It is a super-2 number, since 2×51352231131² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51352231095 and 51352231104.

It is not an unprimeable number, because it can be changed into a prime (51352231331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 40181076 + ... + 40182353.

It is an arithmetic number, because the mean of its divisors is an integer number (6268347540).

Almost surely, 2^51352231131 is an apocalyptic number.

51352231131 is a deficient number, since it is larger than the sum of its proper divisors (23867939349).

51352231131 is a wasteful number, since it uses less digits than its factorization.

51352231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80363506 (or 80363503 counting only the distinct ones).

The product of its digits is 2700, while the sum is 27.

Adding to 51352231131 its reverse (13113225315), we get a palindrome (64465456446).

The spelling of 51352231131 in words is "fifty-one billion, three hundred fifty-two million, two hundred thirty-one thousand, one hundred thirty-one".