11211302310311 has 2 divisors, whose sum is σ = 11211302310312. Its totient is φ = 11211302310310.

The previous prime is 11211302310289. The next prime is 11211302310337. The reversal of 11211302310311 is 11301320311211.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11211302310311 is a prime.

It is a super-2 number, since 2×11211302310311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11211302313311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5605651155155 + 5605651155156.

It is an arithmetic number, because the mean of its divisors is an integer number (5605651155156).

Almost surely, 2^{11211302310311} is an apocalyptic number.

11211302310311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211302310311 is an equidigital number, since it uses as much as digits as its factorization.

11211302310311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 11211302310311 its reverse (11301320311211), we get a palindrome (22512622621522).

Subtracting 11211302310311 from its reverse (11301320311211), we obtain a square (90018000900 = 300030²).

The spelling of 11211302310311 in words is "eleven trillion, two hundred eleven billion, three hundred two million, three hundred ten thousand, three hundred eleven".