241331021 has 4 divisors (see below), whose sum is σ = 242726172. Its totient is φ = 239935872.

The previous prime is 241331009. The next prime is 241331033. The reversal of 241331021 is 120133142.

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

It is an interprime number because it is at equal distance from previous prime (241331009) and next prime (241331033).

It can be written as a sum of positive squares in 2 ways, for example, as 160528900 + 80802121 = 12670^2 + 8989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-241331021 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 (241331071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 697316 + ... + 697661.

It is an arithmetic number, because the mean of its divisors is an integer number (60681543).

Almost surely, 2^241331021 is an apocalyptic number.

It is an amenable number.

241331021 is a deficient number, since it is larger than the sum of its proper divisors (1395151).

241331021 is a wasteful number, since it uses less digits than its factorization.

241331021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395150.

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

The square root of 241331021 is about 15534.8325063388. The cubic root of 241331021 is about 622.5932149674.

Adding to 241331021 its reverse (120133142), we get a palindrome (361464163).

The spelling of 241331021 in words is "two hundred forty-one million, three hundred thirty-one thousand, twenty-one".