241253331505421 has 4 divisors (see below), whose sum is σ = 242647859433372. Its totient is φ = 239858803577472.

The previous prime is 241253331505399. The next prime is 241253331505441. The reversal of 241253331505421 is 124505133352142.

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

It can be written as a sum of positive squares in 2 ways, for example, as 161569393890025 + 79683937615396 = 12710995^2 + 8926586^2 .

It is a cyclic number.

It is not a de Polignac number, because 241253331505421 - 2⁴⁶ = 170884587327757 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 (241253331505441) 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, 697263963716 + ... + 697263964061.

It is an arithmetic number, because the mean of its divisors is an integer number (60661964858343).

Almost surely, 2^{241253331505421} is an apocalyptic number.

It is an amenable number.

241253331505421 is a deficient number, since it is larger than the sum of its proper divisors (1394527927951).

241253331505421 is a wasteful number, since it uses less digits than its factorization.

241253331505421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394527927950.

The product of its (nonzero) digits is 432000, while the sum is 41.

Adding to 241253331505421 its reverse (124505133352142), we get a palindrome (365758464857563).

The spelling of 241253331505421 in words is "two hundred forty-one trillion, two hundred fifty-three billion, three hundred thirty-one million, five hundred five thousand, four hundred twenty-one".