1228191303 has 8 divisors (see below), whose sum is σ = 1641127168. Its totient is φ = 817024824.

The previous prime is 1228191301. The next prime is 1228191317. The reversal of 1228191303 is 3031918221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1228191303 - 2¹ = 1228191301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228191301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440725 + ... + 443502.

It is an arithmetic number, because the mean of its divisors is an integer number (205140896).

Almost surely, 2^1228191303 is an apocalyptic number.

1228191303 is a deficient number, since it is larger than the sum of its proper divisors (412935865).

1228191303 is an equidigital number, since it uses as much as digits as its factorization.

1228191303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 884693.

The product of its (nonzero) digits is 2592, while the sum is 30.

The square root of 1228191303 is about 35045.5603892990. The cubic root of 1228191303 is about 1070.9158324882.

The spelling of 1228191303 in words is "one billion, two hundred twenty-eight million, one hundred ninety-one thousand, three hundred three".