1223021203 has 8 divisors (see below), whose sum is σ = 1292043920. Its totient is φ = 1154463840.

The previous prime is 1223021197. The next prime is 1223021209. The reversal of 1223021203 is 3021203221.

It is an interprime number because it is at equal distance from previous prime (1223021197) and next prime (1223021209).

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

It is a cyclic number.

It is not a de Polignac number, because 1223021203 - 2²⁹ = 686150291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223021209) 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, 110928 + ... + 121453.

It is an arithmetic number, because the mean of its divisors is an integer number (161505490).

Almost surely, 2^1223021203 is an apocalyptic number.

1223021203 is a deficient number, since it is larger than the sum of its proper divisors (69022717).

1223021203 is a wasteful number, since it uses less digits than its factorization.

1223021203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232677.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1223021203 is about 34971.7200463460. The cubic root of 1223021203 is about 1069.4110372751.

Adding to 1223021203 its reverse (3021203221), we get a palindrome (4244224424).

It can be divided in two parts, 12230 and 21203, that added together give a palindrome (33433).

The spelling of 1223021203 in words is "one billion, two hundred twenty-three million, twenty-one thousand, two hundred three".