31132134243 has 16 divisors (see below), whose sum is σ = 52710492160. Its totient is φ = 17789790888.

The previous prime is 31132134217. The next prime is 31132134251. The reversal of 31132134243 is 34243123113.

It is a happy number.

31132134243 is a `hidden beast` number, since 311 + 3 + 2 + 1 + 342 + 4 + 3 = 666.

It is not a de Polignac number, because 31132134243 - 2⁵ = 31132134211 is a prime.

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

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31132134743) 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, 82359955 + ... + 82360332.

It is an arithmetic number, because the mean of its divisors is an integer number (3294405760).

Almost surely, 2^31132134243 is an apocalyptic number.

31132134243 is a deficient number, since it is larger than the sum of its proper divisors (21578357917).

31132134243 is a wasteful number, since it uses less digits than its factorization.

31132134243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164720303 (or 164720297 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

Adding to 31132134243 its reverse (34243123113), we get a palindrome (65375257356).

The spelling of 31132134243 in words is "thirty-one billion, one hundred thirty-two million, one hundred thirty-four thousand, two hundred forty-three".