1229791203 has 12 divisors (see below), whose sum is σ = 1880857368. Its totient is φ = 771633600.

The previous prime is 1229791201. The next prime is 1229791217. The reversal of 1229791203 is 3021979221.

It is not a de Polignac number, because 1229791203 - 2¹ = 1229791201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1229791201) 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 in 11 ways as a sum of consecutive naturals, for example, 4018773 + ... + 4019078.

It is an arithmetic number, because the mean of its divisors is an integer number (156738114).

Almost surely, 2^1229791203 is an apocalyptic number.

1229791203 is a deficient number, since it is larger than the sum of its proper divisors (651066165).

1229791203 is a wasteful number, since it uses less digits than its factorization.

1229791203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037874 (or 8037871 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 1229791203 is about 35068.3789616800. The cubic root of 1229791203 is about 1071.3806392348.

The spelling of 1229791203 in words is "one billion, two hundred twenty-nine million, seven hundred ninety-one thousand, two hundred three".