11123301131 has 2 divisors, whose sum is σ = 11123301132. Its totient is φ = 11123301130.

The previous prime is 11123301001. The next prime is 11123301143. The reversal of 11123301131 is 13110332111.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11123301131 is a prime.

It is a super-2 number, since 2×11123301131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11123391131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561650565 + 5561650566.

It is an arithmetic number, because the mean of its divisors is an integer number (5561650566).

Almost surely, 2^11123301131 is an apocalyptic number.

11123301131 is a deficient number, since it is larger than the sum of its proper divisors (1).

11123301131 is an equidigital number, since it uses as much as digits as its factorization.

11123301131 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 17.

Adding to 11123301131 its reverse (13110332111), we get a palindrome (24233633242).

The spelling of 11123301131 in words is "eleven billion, one hundred twenty-three million, three hundred one thousand, one hundred thirty-one".