400102303 has 2 divisors, whose sum is σ = 400102304. Its totient is φ = 400102302.

The previous prime is 400102301. The next prime is 400102321. The reversal of 400102303 is 303201004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400102303 - 2¹ = 400102301 is a prime.

Together with 400102301, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400102301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200051151 + 200051152.

It is an arithmetic number, because the mean of its divisors is an integer number (200051152).

Almost surely, 2^400102303 is an apocalyptic number.

400102303 is a deficient number, since it is larger than the sum of its proper divisors (1).

400102303 is an equidigital number, since it uses as much as digits as its factorization.

400102303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 400102303 is about 20002.5574114912. The cubic root of 400102303 is about 736.8691089528.

Adding to 400102303 its reverse (303201004), we get a palindrome (703303307).

The spelling of 400102303 in words is "four hundred million, one hundred two thousand, three hundred three".