2431243431 has 28 divisors (see below), whose sum is σ = 3650209032. Its totient is φ = 1618601616.

The previous prime is 2431243343. The next prime is 2431243447. The reversal of 2431243431 is 1343421342.

2431243431 is a `hidden beast` number, since 2 + 4 + 312 + 4 + 343 + 1 = 666.

2431243431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2431243431 - 2⁷ = 2431243303 is a prime.

It is a super-2 number, since 2×2431243431² = 11821889241561303522, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 2431243395 and 2431243404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2431243531) by changing a digit.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 659365 + ... + 663041.

Almost surely, 2^2431243431 is an apocalyptic number.

2431243431 is a deficient number, since it is larger than the sum of its proper divisors (1218965601).

2431243431 is an frugal number, since it uses more digits than its factorization.

2431243431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4602 (or 4587 counting only the distinct ones).

The product of its digits is 6912, while the sum is 27.

The square root of 2431243431 is about 49307.6406959408. The cubic root of 2431243431 is about 1344.6506983459.

Adding to 2431243431 its reverse (1343421342), we get a palindrome (3774664773).

The spelling of 2431243431 in words is "two billion, four hundred thirty-one million, two hundred forty-three thousand, four hundred thirty-one".