7163431131 has 16 divisors (see below), whose sum is σ = 9625140000. Its totient is φ = 4738737408.

The previous prime is 7163431123. The next prime is 7163431217. The reversal of 7163431131 is 1311343617.

It is not a de Polignac number, because 7163431131 - 2³ = 7163431123 is a prime.

It is a super-2 number, since 2×7163431131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7163431031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 461265 + ... + 476541.

It is an arithmetic number, because the mean of its divisors is an integer number (601571250).

Almost surely, 2^7163431131 is an apocalyptic number.

7163431131 is a deficient number, since it is larger than the sum of its proper divisors (2461708869).

7163431131 is a wasteful number, since it uses less digits than its factorization.

7163431131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16478.

The product of its digits is 4536, while the sum is 30.

The square root of 7163431131 is about 84637.0553067627. The cubic root of 7163431131 is about 1927.7040656296.

Adding to 7163431131 its reverse (1311343617), we get a palindrome (8474774748).

The spelling of 7163431131 in words is "seven billion, one hundred sixty-three million, four hundred thirty-one thousand, one hundred thirty-one".