2011221131323 has 2 divisors, whose sum is σ = 2011221131324. Its totient is φ = 2011221131322.

The previous prime is 2011221131281. The next prime is 2011221131327. The reversal of 2011221131323 is 3231311221102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011221131323 - 2¹⁷ = 2011221000251 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011221131294 and 2011221131303.

It is not a weakly prime, because it can be changed into another prime (2011221131327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610565661 + 1005610565662.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610565662).

Almost surely, 2^{2011221131323} is an apocalyptic number.

2011221131323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011221131323 is an equidigital number, since it uses as much as digits as its factorization.

2011221131323 is an evil number, because the sum of its binary digits is even.

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

Adding to 2011221131323 its reverse (3231311221102), we get a palindrome (5242532352425).

The spelling of 2011221131323 in words is "two trillion, eleven billion, two hundred twenty-one million, one hundred thirty-one thousand, three hundred twenty-three".