243310113 has 48 divisors (see below), whose sum is σ = 376451712. Its totient is φ = 151200000.

The previous prime is 243310097. The next prime is 243310129. The reversal of 243310113 is 311013342.

243310113 is a `hidden beast` number, since 243 + 310 + 113 = 666.

It is an interprime number because it is at equal distance from previous prime (243310097) and next prime (243310129).

It is not a de Polignac number, because 243310113 - 2⁴ = 243310097 is a prime.

It is a super-2 number, since 2×243310113² = 118399622176145538, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (243310153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 969238 + ... + 969488.

It is an arithmetic number, because the mean of its divisors is an integer number (7842744).

Almost surely, 2^243310113 is an apocalyptic number.

It is an amenable number.

243310113 is a deficient number, since it is larger than the sum of its proper divisors (133141599).

243310113 is a wasteful number, since it uses less digits than its factorization.

243310113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 403 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 243310113 is about 15598.4009757411. The cubic root of 243310113 is about 624.2904912873.

Adding to 243310113 its reverse (311013342), we get a palindrome (554323455).

The spelling of 243310113 in words is "two hundred forty-three million, three hundred ten thousand, one hundred thirteen".