51430441121 has 2 divisors, whose sum is σ = 51430441122. Its totient is φ = 51430441120.

The previous prime is 51430441079. The next prime is 51430441171. The reversal of 51430441121 is 12114403415.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45492197521 + 5938243600 = 213289^2 + 77060^2 .

It is a cyclic number.

It is not a de Polignac number, because 51430441121 - 2¹⁸ = 51430178977 is a prime.

It is not a weakly prime, because it can be changed into another prime (51430441171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25715220560 + 25715220561.

It is an arithmetic number, because the mean of its divisors is an integer number (25715220561).

Almost surely, 2^51430441121 is an apocalyptic number.

It is an amenable number.

51430441121 is a deficient number, since it is larger than the sum of its proper divisors (1).

51430441121 is an equidigital number, since it uses as much as digits as its factorization.

51430441121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 51430441121 its reverse (12114403415), we get a palindrome (63544844536).

The spelling of 51430441121 in words is "fifty-one billion, four hundred thirty million, four hundred forty-one thousand, one hundred twenty-one".