51131120150012 has 12 divisors (see below), whose sum is σ = 102262240300080. Its totient is φ = 21913337207136.

The previous prime is 51131120150009. The next prime is 51131120150023. The reversal of 51131120150012 is 21005102113115.

51131120150012 is an admirable number.

It is a super-2 number, since 2×51131120150012² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51131120150012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913055716937 + ... + 913055716992.

It is an arithmetic number, because the mean of its divisors is an integer number (8521853358340).

Almost surely, 2^{51131120150012} is an apocalyptic number.

It is an amenable number.

51131120150012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51131120150012 is a wasteful number, since it uses less digits than its factorization.

51131120150012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1826111433940 (or 1826111433938 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 23.

Adding to 51131120150012 its reverse (21005102113115), we get a palindrome (72136222263127).

The spelling of 51131120150012 in words is "fifty-one trillion, one hundred thirty-one billion, one hundred twenty million, one hundred fifty thousand, twelve".