241471151821 has 2 divisors, whose sum is σ = 241471151822. Its totient is φ = 241471151820.

The previous prime is 241471151819. The next prime is 241471151843. The reversal of 241471151821 is 128151174142.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 197390049796 + 44081102025 = 444286^2 + 209955^2 .

It is a cyclic number.

It is not a de Polignac number, because 241471151821 - 2¹ = 241471151819 is a prime.

Together with 241471151819, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (241471151891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120735575910 + 120735575911.

It is an arithmetic number, because the mean of its divisors is an integer number (120735575911).

Almost surely, 2^241471151821 is an apocalyptic number.

It is an amenable number.

241471151821 is a deficient number, since it is larger than the sum of its proper divisors (1).

241471151821 is an equidigital number, since it uses as much as digits as its factorization.

241471151821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17920, while the sum is 37.

The spelling of 241471151821 in words is "two hundred forty-one billion, four hundred seventy-one million, one hundred fifty-one thousand, eight hundred twenty-one".