1312228303 has 2 divisors, whose sum is σ = 1312228304. Its totient is φ = 1312228302.

The previous prime is 1312228301. The next prime is 1312228321. The reversal of 1312228303 is 3038222131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1312228303 - 2¹ = 1312228301 is a prime.

Together with 1312228301, 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 (1312228301) 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, 656114151 + 656114152.

It is an arithmetic number, because the mean of its divisors is an integer number (656114152).

Almost surely, 2^1312228303 is an apocalyptic number.

1312228303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312228303 is an equidigital number, since it uses as much as digits as its factorization.

1312228303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1312228303 is about 36224.6918965503. The cubic root of 1312228303 is about 1094.8042304115.

The spelling of 1312228303 in words is "one billion, three hundred twelve million, two hundred twenty-eight thousand, three hundred three".