1230203442 has 64 divisors (see below), whose sum is σ = 2802078720. Its totient is φ = 357350400.

The previous prime is 1230203441. The next prime is 1230203449. The reversal of 1230203442 is 2443020321.

It is not an unprimeable number, because it can be changed into a prime (1230203441) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92934 + ... + 105342.

It is an arithmetic number, because the mean of its divisors is an integer number (43782480).

Almost surely, 2^1230203442 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230203442, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1401039360).

1230203442 is an abundant number, since it is smaller than the sum of its proper divisors (1571875278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230203442 is a wasteful number, since it uses less digits than its factorization.

1230203442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12499.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 1230203442 is about 35074.2561147061. The cubic root of 1230203442 is about 1071.5003385629.

Adding to 1230203442 its reverse (2443020321), we get a palindrome (3673223763).

The spelling of 1230203442 in words is "one billion, two hundred thirty million, two hundred three thousand, four hundred forty-two".