2011313211233 has 2 divisors, whose sum is σ = 2011313211234. Its totient is φ = 2011313211232.

The previous prime is 2011313211223. The next prime is 2011313211253. The reversal of 2011313211233 is 3321123131102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1018922679889 + 992390531344 = 1009417^2 + 996188^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011313211233 - 2²² = 2011309016929 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011313211199 and 2011313211208.

It is not a weakly prime, because it can be changed into another prime (2011313211223) 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 as a sum of consecutive naturals, namely, 1005656605616 + 1005656605617.

It is an arithmetic number, because the mean of its divisors is an integer number (1005656605617).

Almost surely, 2^{2011313211233} is an apocalyptic number.

It is an amenable number.

2011313211233 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011313211233 is an equidigital number, since it uses as much as digits as its factorization.

2011313211233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 2011313211233 its reverse (3321123131102), we get a palindrome (5332436342335).

The spelling of 2011313211233 in words is "two trillion, eleven billion, three hundred thirteen million, two hundred eleven thousand, two hundred thirty-three".