51031321041 has 16 divisors (see below), whose sum is σ = 70271150400. Its totient is φ = 32916460608.

The previous prime is 51031321037. The next prime is 51031321049. The reversal of 51031321041 is 14012313015.

51031321041 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51031321041 - 2² = 51031321037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51031320999 and 51031321017.

It is not an unprimeable number, because it can be changed into a prime (51031321049) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1264326 + ... + 1304063.

It is an arithmetic number, because the mean of its divisors is an integer number (4391946900).

Almost surely, 2^51031321041 is an apocalyptic number.

It is an amenable number.

51031321041 is a deficient number, since it is larger than the sum of its proper divisors (19239829359).

51031321041 is a wasteful number, since it uses less digits than its factorization.

51031321041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2568608.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 51031321041 its reverse (14012313015), we get a palindrome (65043634056).

The spelling of 51031321041 in words is "fifty-one billion, thirty-one million, three hundred twenty-one thousand, forty-one".