51011151101 has 2 divisors, whose sum is σ = 51011151102. Its totient is φ = 51011151100.

The previous prime is 51011151073. The next prime is 51011151173. The reversal of 51011151101 is 10115111015.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 32426645476 + 18584505625 = 180074^2 + 136325^2 .

It is a cyclic number.

It is not a de Polignac number, because 51011151101 - 2¹⁰ = 51011150077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51011151101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51011156101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25505575550 + 25505575551.

It is an arithmetic number, because the mean of its divisors is an integer number (25505575551).

Almost surely, 2^51011151101 is an apocalyptic number.

It is an amenable number.

51011151101 is a deficient number, since it is larger than the sum of its proper divisors (1).

51011151101 is an equidigital number, since it uses as much as digits as its factorization.

51011151101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25, while the sum is 17.

Adding to 51011151101 its reverse (10115111015), we get a palindrome (61126262116).

The spelling of 51011151101 in words is "fifty-one billion, eleven million, one hundred fifty-one thousand, one hundred one".