243044031203 has 2 divisors, whose sum is σ = 243044031204. Its totient is φ = 243044031202.

The previous prime is 243044031157. The next prime is 243044031229. The reversal of 243044031203 is 302130440342.

It is an a-pointer prime, because the next prime (243044031229) can be obtained adding 243044031203 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 243044031203 - 2²⁰ = 243042982627 is a prime.

It is a super-2 number, since 2×243044031203² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (243044031233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121522015601 + 121522015602.

It is an arithmetic number, because the mean of its divisors is an integer number (121522015602).

Almost surely, 2^243044031203 is an apocalyptic number.

243044031203 is a deficient number, since it is larger than the sum of its proper divisors (1).

243044031203 is an equidigital number, since it uses as much as digits as its factorization.

243044031203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 243044031203 its reverse (302130440342), we get a palindrome (545174471545).

The spelling of 243044031203 in words is "two hundred forty-three billion, forty-four million, thirty-one thousand, two hundred three".