231532541051113 has 2 divisors, whose sum is σ = 231532541051114. Its totient is φ = 231532541051112.

The previous prime is 231532541051111. The next prime is 231532541051131. The reversal of 231532541051113 is 311150145235132.

Together with next prime (231532541051131) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 151069344714729 + 80463196336384 = 12291027^2 + 8970128^2 .

It is a cyclic number.

It is not a de Polignac number, because 231532541051113 - 2¹ = 231532541051111 is a prime.

Together with 231532541051111, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (231532541051111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115766270525556 + 115766270525557.

It is an arithmetic number, because the mean of its divisors is an integer number (115766270525557).

Almost surely, 2^{231532541051113} is an apocalyptic number.

It is an amenable number.

231532541051113 is a deficient number, since it is larger than the sum of its proper divisors (1).

231532541051113 is an equidigital number, since it uses as much as digits as its factorization.

231532541051113 is an odious number, because the sum of its binary digits is odd.

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

Adding to 231532541051113 its reverse (311150145235132), we get a palindrome (542682686286245).

The spelling of 231532541051113 in words is "two hundred thirty-one trillion, five hundred thirty-two billion, five hundred forty-one million, fifty-one thousand, one hundred thirteen".