135031231352 has 8 divisors (see below), whose sum is σ = 253183558800. Its totient is φ = 67515615672.

The previous prime is 135031231351. The next prime is 135031231393. The reversal of 135031231352 is 253132130531.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135031231351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8439451952 + ... + 8439451967.

It is an arithmetic number, because the mean of its divisors is an integer number (31647944850).

Almost surely, 2^135031231352 is an apocalyptic number.

It is an amenable number.

135031231352 is a deficient number, since it is larger than the sum of its proper divisors (118152327448).

135031231352 is a wasteful number, since it uses less digits than its factorization.

135031231352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16878903925 (or 16878903921 counting only the distinct ones).

The product of its (nonzero) digits is 8100, while the sum is 29.

Adding to 135031231352 its reverse (253132130531), we get a palindrome (388163361883).

The spelling of 135031231352 in words is "one hundred thirty-five billion, thirty-one million, two hundred thirty-one thousand, three hundred fifty-two".