51021340140012 has 48 divisors (see below), whose sum is σ = 129903775542912. Its totient is φ = 15457289143680.

The previous prime is 51021340140007. The next prime is 51021340140031. The reversal of 51021340140012 is 21004104312015.

51021340140012 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45987478 + ... + 47083869.

It is an arithmetic number, because the mean of its divisors is an integer number (2706328657144).

Almost surely, 2^{51021340140012} is an apocalyptic number.

It is an amenable number.

51021340140012 is an abundant number, since it is smaller than the sum of its proper divisors (78882435402900).

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

51021340140012 is a wasteful number, since it uses less digits than its factorization.

51021340140012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93075518 (or 93075516 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 24.

Adding to 51021340140012 its reverse (21004104312015), we get a palindrome (72025444452027).

The spelling of 51021340140012 in words is "fifty-one trillion, twenty-one billion, three hundred forty million, one hundred forty thousand, twelve".