243101454461 has 2 divisors, whose sum is σ = 243101454462. Its totient is φ = 243101454460.

The previous prime is 243101454433. The next prime is 243101454499. The reversal of 243101454461 is 164454101342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 239703264025 + 3398190436 = 489595^2 + 58294^2 .

It is a cyclic number.

It is not a de Polignac number, because 243101454461 - 2⁶ = 243101454397 is a prime.

It is a super-2 number, since 2×243101454461² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243101454161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121550727230 + 121550727231.

It is an arithmetic number, because the mean of its divisors is an integer number (121550727231).

Almost surely, 2^243101454461 is an apocalyptic number.

It is an amenable number.

243101454461 is a deficient number, since it is larger than the sum of its proper divisors (1).

243101454461 is an equidigital number, since it uses as much as digits as its factorization.

243101454461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46080, while the sum is 35.

The spelling of 243101454461 in words is "two hundred forty-three billion, one hundred one million, four hundred fifty-four thousand, four hundred sixty-one".