2011312202321 has 2 divisors, whose sum is σ = 2011312202322. Its totient is φ = 2011312202320.

The previous prime is 2011312202281. The next prime is 2011312202357. The reversal of 2011312202321 is 1232022131102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1831799833600 + 179512368721 = 1353440^2 + 423689^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011312202321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011312202293 and 2011312202302.

It is not a weakly prime, because it can be changed into another prime (2011312202821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005656101160 + 1005656101161.

It is an arithmetic number, because the mean of its divisors is an integer number (1005656101161).

Almost surely, 2^{2011312202321} is an apocalyptic number.

It is an amenable number.

2011312202321 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011312202321 is an equidigital number, since it uses as much as digits as its factorization.

2011312202321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 2011312202321 its reverse (1232022131102), we get a palindrome (3243334333423).

The spelling of 2011312202321 in words is "two trillion, eleven billion, three hundred twelve million, two hundred two thousand, three hundred twenty-one".