243007100313161 has 2 divisors, whose sum is σ = 243007100313162. Its totient is φ = 243007100313160.

The previous prime is 243007100313143. The next prime is 243007100313227. The reversal of 243007100313161 is 161313001700342.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 242933527005625 + 73573307536 = 15586325^2 + 271244^2 .

It is a cyclic number.

It is not a de Polignac number, because 243007100313161 - 2²⁶ = 243007033204297 is a prime.

It is a super-2 number, since 2×243007100313161² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (243007100373161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121503550156580 + 121503550156581.

It is an arithmetic number, because the mean of its divisors is an integer number (121503550156581).

Almost surely, 2^{243007100313161} is an apocalyptic number.

It is an amenable number.

243007100313161 is a deficient number, since it is larger than the sum of its proper divisors (1).

243007100313161 is an equidigital number, since it uses as much as digits as its factorization.

243007100313161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 32.

The spelling of 243007100313161 in words is "two hundred forty-three trillion, seven billion, one hundred million, three hundred thirteen thousand, one hundred sixty-one".