11430221320 has 64 divisors (see below), whose sum is σ = 31120951680. Its totient is φ = 3688406016.

The previous prime is 11430221279. The next prime is 11430221329. The reversal of 11430221320 is 2312203411.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11430221329) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1195894 + ... + 1205413.

It is an arithmetic number, because the mean of its divisors is an integer number (486264870).

Almost surely, 2^11430221320 is an apocalyptic number.

11430221320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11430221320 is an abundant number, since it is smaller than the sum of its proper divisors (19690730360).

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

11430221320 is a wasteful number, since it uses less digits than its factorization.

11430221320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2401342 (or 2401338 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11430221320 its reverse (2312203411), we get a palindrome (13742424731).

The spelling of 11430221320 in words is "eleven billion, four hundred thirty million, two hundred twenty-one thousand, three hundred twenty".