400310231303 has 2 divisors, whose sum is σ = 400310231304. Its totient is φ = 400310231302.

The previous prime is 400310231281. The next prime is 400310231333. The reversal of 400310231303 is 303132013004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 400310231303 - 2⁸ = 400310231047 is a prime.

It is a super-2 number, since 2×400310231303² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (400310231333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 200155115651 + 200155115652.

It is an arithmetic number, because the mean of its divisors is an integer number (200155115652).

Almost surely, 2^400310231303 is an apocalyptic number.

400310231303 is a deficient number, since it is larger than the sum of its proper divisors (1).

400310231303 is an equidigital number, since it uses as much as digits as its factorization.

400310231303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 400310231303 its reverse (303132013004), we get a palindrome (703442244307).

The spelling of 400310231303 in words is "four hundred billion, three hundred ten million, two hundred thirty-one thousand, three hundred three".