240400404203 has 2 divisors, whose sum is σ = 240400404204. Its totient is φ = 240400404202.

The previous prime is 240400404197. The next prime is 240400404217. The reversal of 240400404203 is 302404004042.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 240400404203 - 2¹⁴ = 240400387819 is a prime.

It is not a weakly prime, because it can be changed into another prime (240400434203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120200202101 + 120200202102.

It is an arithmetic number, because the mean of its divisors is an integer number (120200202102).

Almost surely, 2^240400404203 is an apocalyptic number.

240400404203 is a deficient number, since it is larger than the sum of its proper divisors (1).

240400404203 is an equidigital number, since it uses as much as digits as its factorization.

240400404203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 23.

Adding to 240400404203 its reverse (302404004042), we get a palindrome (542804408245).

The spelling of 240400404203 in words is "two hundred forty billion, four hundred million, four hundred four thousand, two hundred three".