8431073131 has 16 divisors (see below), whose sum is σ = 9780019200. Its totient is φ = 7204016160.

The previous prime is 8431073083. The next prime is 8431073149. The reversal of 8431073131 is 1313701348.

It is a cyclic number.

It is not a de Polignac number, because 8431073131 - 2⁷ = 8431073003 is a prime.

It is a super-2 number, since 2×8431073131² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 8431073093 and 8431073102.

It is not an unprimeable number, because it can be changed into a prime (8431073531) 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 15 ways as a sum of consecutive naturals, for example, 445531 + ... + 464068.

It is an arithmetic number, because the mean of its divisors is an integer number (611251200).

Almost surely, 2^8431073131 is an apocalyptic number.

8431073131 is a deficient number, since it is larger than the sum of its proper divisors (1348946069).

8431073131 is a wasteful number, since it uses less digits than its factorization.

8431073131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909666.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 8431073131 is about 91820.8752463186. The cubic root of 8431073131 is about 2035.2961861450.

Adding to 8431073131 its reverse (1313701348), we get a palindrome (9744774479).

The spelling of 8431073131 in words is "eight billion, four hundred thirty-one million, seventy-three thousand, one hundred thirty-one".