51611562130103 has 2 divisors, whose sum is σ = 51611562130104. Its totient is φ = 51611562130102.

The previous prime is 51611562130013. The next prime is 51611562130151. The reversal of 51611562130103 is 30103126511615.

Together with previous prime (51611562130013) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51611562130103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51611562130603) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25805781065051 + 25805781065052.

It is an arithmetic number, because the mean of its divisors is an integer number (25805781065052).

Almost surely, 2^{51611562130103} is an apocalyptic number.

51611562130103 is a deficient number, since it is larger than the sum of its proper divisors (1).

51611562130103 is an equidigital number, since it uses as much as digits as its factorization.

51611562130103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 35.

Adding to 51611562130103 its reverse (30103126511615), we get a palindrome (81714688641718).

The spelling of 51611562130103 in words is "fifty-one trillion, six hundred eleven billion, five hundred sixty-two million, one hundred thirty thousand, one hundred three".