243121014007 has 2 divisors, whose sum is σ = 243121014008. Its totient is φ = 243121014006.

The previous prime is 243121013983. The next prime is 243121014083. The reversal of 243121014007 is 700410121342.

243121014007 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 243121014007 - 2¹⁵ = 243120981239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (243121014107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121560507003 + 121560507004.

It is an arithmetic number, because the mean of its divisors is an integer number (121560507004).

Almost surely, 2^243121014007 is an apocalyptic number.

243121014007 is a deficient number, since it is larger than the sum of its proper divisors (1).

243121014007 is an equidigital number, since it uses as much as digits as its factorization.

243121014007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 243121014007 its reverse (700410121342), we get a palindrome (943531135349).

The spelling of 243121014007 in words is "two hundred forty-three billion, one hundred twenty-one million, fourteen thousand, seven".