2311220011311 has 12 divisors (see below), whose sum is σ = 3339352956888. Its totient is φ = 1540386855504.

The previous prime is 2311220011297. The next prime is 2311220011337. The reversal of 2311220011311 is 1131100221132.

2311220011311 is a `hidden beast` number, since 2 + 311 + 220 + 0 + 1 + 131 + 1 = 666.

2311220011311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2311220011311 - 2¹⁰ = 2311220010287 is a prime.

It is a super-4 number, since 4×2311220011311⁴ (a number of 51 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311220011351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35506125 + ... + 35571158.

It is an arithmetic number, because the mean of its divisors is an integer number (278279413074).

Almost surely, 2^{2311220011311} is an apocalyptic number.

2311220011311 is a deficient number, since it is larger than the sum of its proper divisors (1028132945577).

2311220011311 is a wasteful number, since it uses less digits than its factorization.

2311220011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71080902 (or 71080899 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 2311220011311 its reverse (1131100221132), we get a palindrome (3442320232443).

The spelling of 2311220011311 in words is "two trillion, three hundred eleven billion, two hundred twenty million, eleven thousand, three hundred eleven".