11031020311 has 2 divisors, whose sum is σ = 11031020312. Its totient is φ = 11031020310.

The previous prime is 11031020267. The next prime is 11031020347. The reversal of 11031020311 is 11302013011.

It is a strong prime.

It is an emirp because it is prime and its reverse (11302013011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11031020311 - 2¹¹ = 11031018263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11031020291 and 11031020300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11031020381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5515510155 + 5515510156.

It is an arithmetic number, because the mean of its divisors is an integer number (5515510156).

Almost surely, 2^11031020311 is an apocalyptic number.

11031020311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11031020311 is an equidigital number, since it uses as much as digits as its factorization.

11031020311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 11031020311 its reverse (11302013011), we get a palindrome (22333033322).

The spelling of 11031020311 in words is "eleven billion, thirty-one million, twenty thousand, three hundred eleven".