400303342443101 has 2 divisors, whose sum is σ = 400303342443102. Its totient is φ = 400303342443100.

The previous prime is 400303342443089. The next prime is 400303342443119. The reversal of 400303342443101 is 101344243303004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 215517109611001 + 184786232832100 = 14680501^2 + 13593610^2 .

It is a cyclic number.

It is not a de Polignac number, because 400303342443101 - 2⁴² = 395905295931997 is a prime.

It is a super-2 number, since 2×400303342443101² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400303342443181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200151671221550 + 200151671221551.

It is an arithmetic number, because the mean of its divisors is an integer number (200151671221551).

Almost surely, 2^{400303342443101} is an apocalyptic number.

It is an amenable number.

400303342443101 is a deficient number, since it is larger than the sum of its proper divisors (1).

400303342443101 is an equidigital number, since it uses as much as digits as its factorization.

400303342443101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 400303342443101 its reverse (101344243303004), we get a palindrome (501647585746105).

The spelling of 400303342443101 in words is "four hundred trillion, three hundred three billion, three hundred forty-two million, four hundred forty-three thousand, one hundred one".