243201015103 has 2 divisors, whose sum is σ = 243201015104. Its totient is φ = 243201015102.

The previous prime is 243201015061. The next prime is 243201015137. The reversal of 243201015103 is 301510102342.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243201015103 - 2⁹ = 243201014591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243201015193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121600507551 + 121600507552.

It is an arithmetic number, because the mean of its divisors is an integer number (121600507552).

Almost surely, 2^243201015103 is an apocalyptic number.

243201015103 is a deficient number, since it is larger than the sum of its proper divisors (1).

243201015103 is an equidigital number, since it uses as much as digits as its factorization.

243201015103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 243201015103 its reverse (301510102342), we get a palindrome (544711117445).

The spelling of 243201015103 in words is "two hundred forty-three billion, two hundred one million, fifteen thousand, one hundred three".