1123210203 has 8 divisors (see below), whose sum is σ = 1502399568. Its totient is φ = 746413824.

The previous prime is 1123210201. The next prime is 1123210217. The reversal of 1123210203 is 3020123211.

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

It is not a de Polignac number, because 1123210203 - 2¹ = 1123210201 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1123210201) 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, 597150 + ... + 599027.

It is an arithmetic number, because the mean of its divisors is an integer number (187799946).

Almost surely, 2^1123210203 is an apocalyptic number.

1123210203 is a deficient number, since it is larger than the sum of its proper divisors (379189365).

1123210203 is a wasteful number, since it uses less digits than its factorization.

1123210203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1196493.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1123210203 is about 33514.3283238677. The cubic root of 1123210203 is about 1039.4900739201.

Adding to 1123210203 its reverse (3020123211), we get a palindrome (4143333414).

The spelling of 1123210203 in words is "one billion, one hundred twenty-three million, two hundred ten thousand, two hundred three".