11420303121 has 24 divisors (see below), whose sum is σ = 16738800000. Its totient is φ = 7501864032.

The previous prime is 11420303099. The next prime is 11420303123. The reversal of 11420303121 is 12130302411.

It is not a de Polignac number, because 11420303121 - 2¹⁸ = 11420040977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11420303094 and 11420303103.

It is not an unprimeable number, because it can be changed into a prime (11420303123) 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 23 ways as a sum of consecutive naturals, for example, 338695 + ... + 370883.

It is an arithmetic number, because the mean of its divisors is an integer number (697450000).

Almost surely, 2^11420303121 is an apocalyptic number.

It is an amenable number.

11420303121 is a deficient number, since it is larger than the sum of its proper divisors (5318496879).

11420303121 is a wasteful number, since it uses less digits than its factorization.

11420303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32773 (or 32770 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11420303121 its reverse (12130302411), we get a palindrome (23550605532).

The spelling of 11420303121 in words is "eleven billion, four hundred twenty million, three hundred three thousand, one hundred twenty-one".