2311213220311 has 16 divisors (see below), whose sum is σ = 2498586940800. Its totient is φ = 2131147476000.

The previous prime is 2311213220299. The next prime is 2311213220333. The reversal of 2311213220311 is 1130223121132.

It is a cyclic number.

It is not a de Polignac number, because 2311213220311 - 2²³ = 2311204831703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311213220711) 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, 10093425 + ... + 10319866.

It is an arithmetic number, because the mean of its divisors is an integer number (156161683800).

Almost surely, 2^{2311213220311} is an apocalyptic number.

2311213220311 is a deficient number, since it is larger than the sum of its proper divisors (187373720489).

2311213220311 is a wasteful number, since it uses less digits than its factorization.

2311213220311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20413470.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2311213220311 its reverse (1130223121132), we get a palindrome (3441436341443).

The spelling of 2311213220311 in words is "two trillion, three hundred eleven billion, two hundred thirteen million, two hundred twenty thousand, three hundred eleven".