5123312302531 has 4 divisors (see below), whose sum is σ = 5207301028864. Its totient is φ = 5039323576200.

The previous prime is 5123312302529. The next prime is 5123312302567. The reversal of 5123312302531 is 1352032133215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5123312302531 - 2¹ = 5123312302529 is a prime.

It is a super-2 number, since 2×5123312302531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5123312302493 and 5123312302502.

It is not an unprimeable number, because it can be changed into a prime (5123312300531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41994363075 + ... + 41994363196.

It is an arithmetic number, because the mean of its divisors is an integer number (1301825257216).

Almost surely, 2^{5123312302531} is an apocalyptic number.

5123312302531 is a deficient number, since it is larger than the sum of its proper divisors (83988726333).

5123312302531 is an equidigital number, since it uses as much as digits as its factorization.

5123312302531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83988726332.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 5123312302531 its reverse (1352032133215), we get a palindrome (6475344435746).

The spelling of 5123312302531 in words is "five trillion, one hundred twenty-three billion, three hundred twelve million, three hundred two thousand, five hundred thirty-one".