5431235231 has 4 divisors (see below), whose sum is σ = 5431413600. Its totient is φ = 5431056864.

The previous prime is 5431235221. The next prime is 5431235267. The reversal of 5431235231 is 1325321345.

It is a happy number.

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 5431235231 - 2⁶ = 5431235167 is a prime.

It is a super-2 number, since 2×5431235231² = 58996632268911246722, 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 = 5431235194 and 5431235203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5431235221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30746 + ... + 108663.

It is an arithmetic number, because the mean of its divisors is an integer number (1357853400).

Almost surely, 2^5431235231 is an apocalyptic number.

5431235231 is a deficient number, since it is larger than the sum of its proper divisors (178369).

5431235231 is a wasteful number, since it uses less digits than its factorization.

5431235231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178368.

The product of its digits is 10800, while the sum is 29.

The square root of 5431235231 is about 73696.9146640482. The cubic root of 5431235231 is about 1757.7868220098.

Adding to 5431235231 its reverse (1325321345), we get a palindrome (6756556576).

The spelling of 5431235231 in words is "five billion, four hundred thirty-one million, two hundred thirty-five thousand, two hundred thirty-one".