243020410481 has 2 divisors, whose sum is σ = 243020410482. Its totient is φ = 243020410480.

The previous prime is 243020410463. The next prime is 243020410489. The reversal of 243020410481 is 184014020342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211959872881 + 31060537600 = 460391^2 + 176240^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-243020410481 is a prime.

It is a super-2 number, since 2×243020410481² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (243020410489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121510205240 + 121510205241.

It is an arithmetic number, because the mean of its divisors is an integer number (121510205241).

Almost surely, 2^243020410481 is an apocalyptic number.

It is an amenable number.

243020410481 is a deficient number, since it is larger than the sum of its proper divisors (1).

243020410481 is an equidigital number, since it uses as much as digits as its factorization.

243020410481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

The spelling of 243020410481 in words is "two hundred forty-three billion, twenty million, four hundred ten thousand, four hundred eighty-one".