11303320121 has 8 divisors (see below), whose sum is σ = 11333553000. Its totient is φ = 11273126400.

The previous prime is 11303320103. The next prime is 11303320139. The reversal of 11303320121 is 12102330311.

It is an interprime number because it is at equal distance from previous prime (11303320103) and next prime (11303320139).

It can be written as a sum of positive squares in 4 ways, for example, as 6309919225 + 4993400896 = 79435^2 + 70664^2 .

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 11303320121 - 2²⁶ = 11236211257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11303320121.

It is not an unprimeable number, because it can be changed into a prime (11303320321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 621485 + ... + 639413.

It is an arithmetic number, because the mean of its divisors is an integer number (1416694125).

Almost surely, 2^11303320121 is an apocalyptic number.

It is an amenable number.

11303320121 is a deficient number, since it is larger than the sum of its proper divisors (30232879).

11303320121 is a wasteful number, since it uses less digits than its factorization.

11303320121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19579.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11303320121 its reverse (12102330311), we get a palindrome (23405650432).

The spelling of 11303320121 in words is "eleven billion, three hundred three million, three hundred twenty thousand, one hundred twenty-one".