243102023161 has 2 divisors, whose sum is σ = 243102023162. Its totient is φ = 243102023160.

The previous prime is 243102023111. The next prime is 243102023179. The reversal of 243102023161 is 161320201342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223346034025 + 19755989136 = 472595^2 + 140556^2 .

It is a cyclic number.

It is not a de Polignac number, because 243102023161 - 2⁹ = 243102022649 is a prime.

It is not a weakly prime, because it can be changed into another prime (243102023111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121551011580 + 121551011581.

It is an arithmetic number, because the mean of its divisors is an integer number (121551011581).

Almost surely, 2^243102023161 is an apocalyptic number.

It is an amenable number.

243102023161 is a deficient number, since it is larger than the sum of its proper divisors (1).

243102023161 is an equidigital number, since it uses as much as digits as its factorization.

243102023161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 243102023161 in words is "two hundred forty-three billion, one hundred two million, twenty-three thousand, one hundred sixty-one".