11331023311 has 16 divisors (see below), whose sum is σ = 12463545600. Its totient is φ = 10254666240.

The previous prime is 11331023309. The next prime is 11331023351. The reversal of 11331023311 is 11332013311.

It is a cyclic number.

It is not a de Polignac number, because 11331023311 - 2¹ = 11331023309 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 (11331023351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14265 + ... + 151213.

It is an arithmetic number, because the mean of its divisors is an integer number (778971600).

Almost surely, 2^11331023311 is an apocalyptic number.

11331023311 is a deficient number, since it is larger than the sum of its proper divisors (1132522289).

11331023311 is a wasteful number, since it uses less digits than its factorization.

11331023311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 137154.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 11331023311 its reverse (11332013311), we get a palindrome (22663036622).

The spelling of 11331023311 in words is "eleven billion, three hundred thirty-one million, twenty-three thousand, three hundred eleven".