231115036647 has 32 divisors (see below), whose sum is σ = 340998958080. Its totient is φ = 138062545920.

The previous prime is 231115036637. The next prime is 231115036661. The reversal of 231115036647 is 746630511132.

It is not a de Polignac number, because 231115036647 - 2⁸ = 231115036391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231115036627) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1471203 + ... + 1620699.

It is an arithmetic number, because the mean of its divisors is an integer number (10656217440).

Almost surely, 2^231115036647 is an apocalyptic number.

231115036647 is a deficient number, since it is larger than the sum of its proper divisors (109883921433).

231115036647 is a wasteful number, since it uses less digits than its factorization.

231115036647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150183.

The product of its (nonzero) digits is 90720, while the sum is 39.

Adding to 231115036647 its reverse (746630511132), we get a palindrome (977745547779).

The spelling of 231115036647 in words is "two hundred thirty-one billion, one hundred fifteen million, thirty-six thousand, six hundred forty-seven".