11133531311 has 16 divisors (see below), whose sum is σ = 12854459904. Its totient is φ = 9445309344.

The previous prime is 11133531257. The next prime is 11133531313. The reversal of 11133531311 is 11313533111.

It is a cyclic number.

It is not a de Polignac number, because 11133531311 - 2¹⁸ = 11133269167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11133531313) 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 15 ways as a sum of consecutive naturals, for example, 2042756 + ... + 2048198.

It is an arithmetic number, because the mean of its divisors is an integer number (803403744).

Almost surely, 2^11133531311 is an apocalyptic number.

11133531311 is a deficient number, since it is larger than the sum of its proper divisors (1720928593).

11133531311 is a wasteful number, since it uses less digits than its factorization.

11133531311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8390.

The product of its digits is 405, while the sum is 23.

The spelling of 11133531311 in words is "eleven billion, one hundred thirty-three million, five hundred thirty-one thousand, three hundred eleven".