231534005354173 has 2 divisors, whose sum is σ = 231534005354174. Its totient is φ = 231534005354172.

The previous prime is 231534005354131. The next prime is 231534005354237. The reversal of 231534005354173 is 371453500435132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142545762198009 + 88988243156164 = 11939253^2 + 9433358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-231534005354173 is a prime.

It is a super-2 number, since 2×231534005354173² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (231534005334173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115767002677086 + 115767002677087.

It is an arithmetic number, because the mean of its divisors is an integer number (115767002677087).

Almost surely, 2^{231534005354173} is an apocalyptic number.

It is an amenable number.

231534005354173 is a deficient number, since it is larger than the sum of its proper divisors (1).

231534005354173 is an equidigital number, since it uses as much as digits as its factorization.

231534005354173 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268000, while the sum is 46.

The spelling of 231534005354173 in words is "two hundred thirty-one trillion, five hundred thirty-four billion, five million, three hundred fifty-four thousand, one hundred seventy-three".