51110203103 has 2 divisors, whose sum is σ = 51110203104. Its totient is φ = 51110203102.

The previous prime is 51110203087. The next prime is 51110203121. The reversal of 51110203103 is 30130201115.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51110203103 - 2⁴ = 51110203087 is a prime.

It is a super-2 number, since 2×51110203103² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51110203003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25555101551 + 25555101552.

It is an arithmetic number, because the mean of its divisors is an integer number (25555101552).

Almost surely, 2^51110203103 is an apocalyptic number.

51110203103 is a deficient number, since it is larger than the sum of its proper divisors (1).

51110203103 is an equidigital number, since it uses as much as digits as its factorization.

51110203103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 17.

Adding to 51110203103 its reverse (30130201115), we get a palindrome (81240404218).

The spelling of 51110203103 in words is "fifty-one billion, one hundred ten million, two hundred three thousand, one hundred three".