6311320403 has 2 divisors, whose sum is σ = 6311320404. Its totient is φ = 6311320402.

The previous prime is 6311320361. The next prime is 6311320481. The reversal of 6311320403 is 3040231136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6311320403 - 2³² = 2016353107 is a prime.

It is not a weakly prime, because it can be changed into another prime (6311320493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3155660201 + 3155660202.

It is an arithmetic number, because the mean of its divisors is an integer number (3155660202).

Almost surely, 2^6311320403 is an apocalyptic number.

6311320403 is a deficient number, since it is larger than the sum of its proper divisors (1).

6311320403 is an equidigital number, since it uses as much as digits as its factorization.

6311320403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 6311320403 is about 79443.8191617196. The cubic root of 6311320403 is about 1848.0203223397.

Adding to 6311320403 its reverse (3040231136), we get a palindrome (9351551539).

The spelling of 6311320403 in words is "six billion, three hundred eleven million, three hundred twenty thousand, four hundred three".