213042341 has 4 divisors (see below), whose sum is σ = 213082272. Its totient is φ = 213002412.

The previous prime is 213042331. The next prime is 213042367. The reversal of 213042341 is 143240312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 213042341 - 2¹⁰ = 213041317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213042311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10451 + ... + 23136.

It is an arithmetic number, because the mean of its divisors is an integer number (53270568).

Almost surely, 2^213042341 is an apocalyptic number.

It is an amenable number.

213042341 is a deficient number, since it is larger than the sum of its proper divisors (39931).

213042341 is an equidigital number, since it uses as much as digits as its factorization.

213042341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39930.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 213042341 is about 14595.9700260038. The cubic root of 213042341 is about 597.2488312503.

Adding to 213042341 its reverse (143240312), we get a palindrome (356282653).

The spelling of 213042341 in words is "two hundred thirteen million, forty-two thousand, three hundred forty-one".