240113213 has 2 divisors, whose sum is σ = 240113214. Its totient is φ = 240113212.

The previous prime is 240113191. The next prime is 240113221. The reversal of 240113213 is 312311042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 218980804 + 21132409 = 14798^2 + 4597^2 .

It is a cyclic number.

It is not a de Polignac number, because 240113213 - 2¹⁶ = 240047677 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 240113191 and 240113200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (240113113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120056606 + 120056607.

It is an arithmetic number, because the mean of its divisors is an integer number (120056607).

Almost surely, 2^240113213 is an apocalyptic number.

It is an amenable number.

240113213 is a deficient number, since it is larger than the sum of its proper divisors (1).

240113213 is an equidigital number, since it uses as much as digits as its factorization.

240113213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 240113213 is about 15495.5868878852. The cubic root of 240113213 is about 621.5442022503.

Adding to 240113213 its reverse (312311042), we get a palindrome (552424255).

The spelling of 240113213 in words is "two hundred forty million, one hundred thirteen thousand, two hundred thirteen".