241134657821 has 4 divisors (see below), whose sum is σ = 241161546144. Its totient is φ = 241107769500.

The previous prime is 241134657817. The next prime is 241134657847. The reversal of 241134657821 is 128756431142.

It is a happy number.

241134657821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, and also an emirpimes, since its reverse is a distinct semiprime: 128756431142 = 2 ⋅64378215571.

It is a cyclic number.

It is not a de Polignac number, because 241134657821 - 2² = 241134657817 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 (241134657721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13430705 + ... + 13448646.

It is an arithmetic number, because the mean of its divisors is an integer number (60290386536).

Almost surely, 2^241134657821 is an apocalyptic number.

It is an amenable number.

241134657821 is a deficient number, since it is larger than the sum of its proper divisors (26888323).

241134657821 is an equidigital number, since it uses as much as digits as its factorization.

241134657821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26888322.

The product of its digits is 322560, while the sum is 44.

The spelling of 241134657821 in words is "two hundred forty-one billion, one hundred thirty-four million, six hundred fifty-seven thousand, eight hundred twenty-one".