423435040213 has 2 divisors, whose sum is σ = 423435040214. Its totient is φ = 423435040212.

The previous prime is 423435040183. The next prime is 423435040271. The reversal of 423435040213 is 312040534324.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 423173668324 + 261371889 = 650518^2 + 16167^2 .

It is a cyclic number.

It is not a de Polignac number, because 423435040213 - 2⁹ = 423435039701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423435040913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211717520106 + 211717520107.

It is an arithmetic number, because the mean of its divisors is an integer number (211717520107).

Almost surely, 2^423435040213 is an apocalyptic number.

It is an amenable number.

423435040213 is a deficient number, since it is larger than the sum of its proper divisors (1).

423435040213 is an equidigital number, since it uses as much as digits as its factorization.

423435040213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34560, while the sum is 31.

Adding to 423435040213 its reverse (312040534324), we get a palindrome (735475574537).

The spelling of 423435040213 in words is "four hundred twenty-three billion, four hundred thirty-five million, forty thousand, two hundred thirteen".