400102301 has 2 divisors, whose sum is σ = 400102302. Its totient is φ = 400102300.

The previous prime is 400102291. The next prime is 400102303. The reversal of 400102301 is 103201004.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 394816900 + 5285401 = 19870^2 + 2299^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-400102301 is a prime.

Together with 400102303, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400102303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200051150 + 200051151.

It is an arithmetic number, because the mean of its divisors is an integer number (200051151).

Almost surely, 2^400102301 is an apocalyptic number.

It is an amenable number.

400102301 is a deficient number, since it is larger than the sum of its proper divisors (1).

400102301 is an equidigital number, since it uses as much as digits as its factorization.

400102301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 400102301 is about 20002.5573614976. The cubic root of 400102301 is about 736.8691077250.

Adding to 400102301 its reverse (103201004), we get a palindrome (503303305).

The spelling of 400102301 in words is "four hundred million, one hundred two thousand, three hundred one".