11203121220330 has 32 divisors (see below), whose sum is σ = 28955759462784. Its totient is φ = 2757691377216.

The previous prime is 11203121220307. The next prime is 11203121220391. The reversal of 11203121220330 is 3302212130211.

It is a junction number, because it is equal to n+sod(n) for n = 11203121220297 and 11203121220306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14362975534 + ... + 14362976313.

It is an arithmetic number, because the mean of its divisors is an integer number (904867483212).

Almost surely, 2^{11203121220330} is an apocalyptic number.

11203121220330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11203121220330 is an abundant number, since it is smaller than the sum of its proper divisors (17752638242454).

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

11203121220330 is a wasteful number, since it uses less digits than its factorization.

11203121220330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28725951870.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 11203121220330 its reverse (3302212130211), we get a palindrome (14505333350541).

The spelling of 11203121220330 in words is "eleven trillion, two hundred three billion, one hundred twenty-one million, two hundred twenty thousand, three hundred thirty".