400500433213 has 2 divisors, whose sum is σ = 400500433214. Its totient is φ = 400500433212.

The previous prime is 400500433183. The next prime is 400500433241. The reversal of 400500433213 is 312334005004.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 315733857604 + 84766575609 = 561902^2 + 291147^2 .

It is a cyclic number.

It is not a de Polignac number, because 400500433213 - 2⁵ = 400500433181 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400500433273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200250216606 + 200250216607.

It is an arithmetic number, because the mean of its divisors is an integer number (200250216607).

Almost surely, 2^400500433213 is an apocalyptic number.

It is an amenable number.

400500433213 is a deficient number, since it is larger than the sum of its proper divisors (1).

400500433213 is an equidigital number, since it uses as much as digits as its factorization.

400500433213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 400500433213 its reverse (312334005004), we get a palindrome (712834438217).

The spelling of 400500433213 in words is "four hundred billion, five hundred million, four hundred thirty-three thousand, two hundred thirteen".