11303031121 has 2 divisors, whose sum is σ = 11303031122. Its totient is φ = 11303031120.

The previous prime is 11303031101. The next prime is 11303031133. The reversal of 11303031121 is 12113030311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10876195521 + 426835600 = 104289^2 + 20660^2 .

It is an emirp because it is prime and its reverse (12113030311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11303031121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11303031095 and 11303031104.

It is not a weakly prime, because it can be changed into another prime (11303031101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5651515560 + 5651515561.

It is an arithmetic number, because the mean of its divisors is an integer number (5651515561).

Almost surely, 2^11303031121 is an apocalyptic number.

It is an amenable number.

11303031121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11303031121 is an equidigital number, since it uses as much as digits as its factorization.

11303031121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11303031121 its reverse (12113030311), we get a palindrome (23416061432).

The spelling of 11303031121 in words is "eleven billion, three hundred three million, thirty-one thousand, one hundred twenty-one".