11031031311 has 16 divisors (see below), whose sum is σ = 15361981440. Its totient is φ = 7027653600.

The previous prime is 11031031261. The next prime is 11031031321. The reversal of 11031031311 is 11313013011.

It is not a de Polignac number, because 11031031311 - 2¹⁹ = 11030507023 is a prime.

It is a super-4 number, since 4×11031031311⁴ (a number of 41 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11031031321) 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 in 15 ways as a sum of consecutive naturals, for example, 1015 + ... + 148536.

It is an arithmetic number, because the mean of its divisors is an integer number (960123840).

Almost surely, 2^11031031311 is an apocalyptic number.

11031031311 is a deficient number, since it is larger than the sum of its proper divisors (4330950129).

11031031311 is a wasteful number, since it uses less digits than its factorization.

11031031311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150646.

The product of its (nonzero) digits is 27, while the sum is 15.

Adding to 11031031311 its reverse (11313013011), we get a palindrome (22344044322).

The spelling of 11031031311 in words is "eleven billion, thirty-one million, thirty-one thousand, three hundred eleven".