51231124103 has 2 divisors, whose sum is σ = 51231124104. Its totient is φ = 51231124102.

The previous prime is 51231124033. The next prime is 51231124111. The reversal of 51231124103 is 30142113215.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51231124103 - 2²⁰ = 51230075527 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51231123103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25615562051 + 25615562052.

It is an arithmetic number, because the mean of its divisors is an integer number (25615562052).

Almost surely, 2^51231124103 is an apocalyptic number.

51231124103 is a deficient number, since it is larger than the sum of its proper divisors (1).

51231124103 is an equidigital number, since it uses as much as digits as its factorization.

51231124103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 51231124103 its reverse (30142113215), we get a palindrome (81373237318).

It can be divided in two parts, 5123112 and 4103, that added together give a palindrome (5127215).

The spelling of 51231124103 in words is "fifty-one billion, two hundred thirty-one million, one hundred twenty-four thousand, one hundred three".