11203320121 has 8 divisors (see below), whose sum is σ = 12807924480. Its totient is φ = 9599748288.

The previous prime is 11203320119. The next prime is 11203320131. The reversal of 11203320121 is 12102330211.

11203320121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 11203320121 - 2¹ = 11203320119 is a prime.

It is a super-3 number, since 3×11203320121³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11203320095 and 11203320104.

It is not an unprimeable number, because it can be changed into a prime (11203320101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234736 + ... + 278401.

It is an arithmetic number, because the mean of its divisors is an integer number (1600990560).

Almost surely, 2^11203320121 is an apocalyptic number.

It is an amenable number.

11203320121 is a deficient number, since it is larger than the sum of its proper divisors (1604604359).

11203320121 is an equidigital number, since it uses as much as digits as its factorization.

11203320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516263.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11203320121 its reverse (12102330211), we get a palindrome (23305650332).

The spelling of 11203320121 in words is "eleven billion, two hundred three million, three hundred twenty thousand, one hundred twenty-one".