11430021204 has 72 divisors (see below), whose sum is σ = 33912523008. Its totient is φ = 3177455040.

The previous prime is 11430021203. The next prime is 11430021257. The reversal of 11430021204 is 40212003411.

11430021204 is a `hidden beast` number, since 11 + 430 + 0 + 21 + 204 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430021203) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 603612 + ... + 622259.

It is an arithmetic number, because the mean of its divisors is an integer number (471007264).

Almost surely, 2^11430021204 is an apocalyptic number.

11430021204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11430021204 is an abundant number, since it is smaller than the sum of its proper divisors (22482501804).

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

11430021204 is a wasteful number, since it uses less digits than its factorization.

11430021204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1225925 (or 1225920 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11430021204 its reverse (40212003411), we get a palindrome (51642024615).

The spelling of 11430021204 in words is "eleven billion, four hundred thirty million, twenty-one thousand, two hundred four".