2011220312323 has 2 divisors, whose sum is σ = 2011220312324. Its totient is φ = 2011220312322.

The previous prime is 2011220312317. The next prime is 2011220312399. The reversal of 2011220312323 is 3232130221102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011220312323 - 2¹³ = 2011220304131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011220312294 and 2011220312303.

It is not a weakly prime, because it can be changed into another prime (2011220315323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005610156161 + 1005610156162.

It is an arithmetic number, because the mean of its divisors is an integer number (1005610156162).

Almost surely, 2^{2011220312323} is an apocalyptic number.

2011220312323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011220312323 is an equidigital number, since it uses as much as digits as its factorization.

2011220312323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 2011220312323 its reverse (3232130221102), we get a palindrome (5243350533425).

The spelling of 2011220312323 in words is "two trillion, eleven billion, two hundred twenty million, three hundred twelve thousand, three hundred twenty-three".