5123431 has 4 divisors (see below), whose sum is σ = 5195664. Its totient is φ = 5051200.

The previous prime is 5123429. The next prime is 5123441. The reversal of 5123431 is 1343215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1343215 = 5 ⋅268643.

It is a cyclic number.

It is not a de Polignac number, because 5123431 - 2¹ = 5123429 is a prime.

It is a super-2 number, since 2×5123431² = 52499090423522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5123399 and 5123408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5123441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36010 + ... + 36151.

It is an arithmetic number, because the mean of its divisors is an integer number (1298916).

Almost surely, 2^5123431 is an apocalyptic number.

5123431 is a deficient number, since it is larger than the sum of its proper divisors (72233).

5123431 is an equidigital number, since it uses as much as digits as its factorization.

5123431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72232.

The product of its digits is 360, while the sum is 19.

The square root of 5123431 is about 2263.4997238789. The cubic root of 5123431 is about 172.3932659051.

Adding to 5123431 its reverse (1343215), we get a palindrome (6466646).

The spelling of 5123431 in words is "five million, one hundred twenty-three thousand, four hundred thirty-one".