11331020311 has 24 divisors (see below), whose sum is σ = 12890789856. Its totient is φ = 9882312000.

The previous prime is 11331020279. The next prime is 11331020321. The reversal of 11331020311 is 11302013311.

It is not a de Polignac number, because 11331020311 - 2⁵ = 11331020279 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 (11331020321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2057061 + ... + 2062561.

It is an arithmetic number, because the mean of its divisors is an integer number (537116244).

Almost surely, 2^11331020311 is an apocalyptic number.

11331020311 is a deficient number, since it is larger than the sum of its proper divisors (1559769545).

11331020311 is an equidigital number, since it uses as much as digits as its factorization.

11331020311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5703 (or 5620 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 11331020311 its reverse (11302013311), we get a palindrome (22633033622).

The spelling of 11331020311 in words is "eleven billion, three hundred thirty-one million, twenty thousand, three hundred eleven".