11303122121 has 8 divisors (see below), whose sum is σ = 11330013984. Its totient is φ = 11276254080.

The previous prime is 11303122111. The next prime is 11303122147. The reversal of 11303122121 is 12122130311.

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 11303122121 - 2⁶ = 11303122057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11303122121.

It is not an unprimeable number, because it can be changed into a prime (11303122111) 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, 1238786 + ... + 1247876.

It is an arithmetic number, because the mean of its divisors is an integer number (1416251748).

Almost surely, 2^11303122121 is an apocalyptic number.

It is an amenable number.

11303122121 is a deficient number, since it is larger than the sum of its proper divisors (26891863).

11303122121 is an equidigital number, since it uses as much as digits as its factorization.

11303122121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11911.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11303122121 its reverse (12122130311), we get a palindrome (23425252432).

The spelling of 11303122121 in words is "eleven billion, three hundred three million, one hundred twenty-two thousand, one hundred twenty-one".