231531532152112 has 10 divisors (see below), whose sum is σ = 448592343544748. Its totient is φ = 115765766076048.

The previous prime is 231531532152017. The next prime is 231531532152127. The reversal of 231531532152112 is 211251235135132.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7235360379738 + ... + 7235360379769.

Almost surely, 2^{231531532152112} is an apocalyptic number.

It is an amenable number.

231531532152112 is a deficient number, since it is larger than the sum of its proper divisors (217060811392636).

231531532152112 is a wasteful number, since it uses less digits than its factorization.

231531532152112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14470720759515 (or 14470720759509 counting only the distinct ones).

The product of its digits is 54000, while the sum is 37.

Adding to 231531532152112 its reverse (211251235135132), we get a palindrome (442782767287244).

The spelling of 231531532152112 in words is "two hundred thirty-one trillion, five hundred thirty-one billion, five hundred thirty-two million, one hundred fifty-two thousand, one hundred twelve".