5105123131 has 2 divisors, whose sum is σ = 5105123132. Its totient is φ = 5105123130.

The previous prime is 5105123087. The next prime is 5105123143. The reversal of 5105123131 is 1313215015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5105123131 - 2¹³ = 5105114939 is a prime.

It is a super-2 number, since 2×5105123131² = 52124564365342486322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5105120131) 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, 2552561565 + 2552561566.

It is an arithmetic number, because the mean of its divisors is an integer number (2552561566).

Almost surely, 2^5105123131 is an apocalyptic number.

5105123131 is a deficient number, since it is larger than the sum of its proper divisors (1).

5105123131 is an equidigital number, since it uses as much as digits as its factorization.

5105123131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 22.

The square root of 5105123131 is about 71450.1443735420. The cubic root of 5105123131 is about 1721.8767970271.

Adding to 5105123131 its reverse (1313215015), we get a palindrome (6418338146).

The spelling of 5105123131 in words is "five billion, one hundred five million, one hundred twenty-three thousand, one hundred thirty-one".