243430270243 has 2 divisors, whose sum is σ = 243430270244. Its totient is φ = 243430270242.

The previous prime is 243430270217. The next prime is 243430270313. The reversal of 243430270243 is 342072034342.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243430270243 - 2¹⁷ = 243430139171 is a prime.

It is a super-2 number, since 2×243430270243² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 243430270199 and 243430270208.

It is not a weakly prime, because it can be changed into another prime (243430270943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121715135121 + 121715135122.

It is an arithmetic number, because the mean of its divisors is an integer number (121715135122).

Almost surely, 2^243430270243 is an apocalyptic number.

243430270243 is a deficient number, since it is larger than the sum of its proper divisors (1).

243430270243 is an equidigital number, since it uses as much as digits as its factorization.

243430270243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 34.

The spelling of 243430270243 in words is "two hundred forty-three billion, four hundred thirty million, two hundred seventy thousand, two hundred forty-three".