116205231 has 4 divisors (see below), whose sum is σ = 154940312. Its totient is φ = 77470152.

The previous prime is 116205211. The next prime is 116205259. The reversal of 116205231 is 132502611.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 116205231 - 2¹⁷ = 116074159 is a prime.

It is a super-2 number, since 2×116205231² = 27007311423526722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 116205198 and 116205207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (116205211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19367536 + ... + 19367541.

It is an arithmetic number, because the mean of its divisors is an integer number (38735078).

Almost surely, 2^116205231 is an apocalyptic number.

116205231 is a deficient number, since it is larger than the sum of its proper divisors (38735081).

116205231 is an equidigital number, since it uses as much as digits as its factorization.

116205231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38735080.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 116205231 is about 10779.8530138402. The cubic root of 116205231 is about 487.9873448635.

Adding to 116205231 its reverse (132502611), we get a palindrome (248707842).

The spelling of 116205231 in words is "one hundred sixteen million, two hundred five thousand, two hundred thirty-one".