2011302121331 has 2 divisors, whose sum is σ = 2011302121332. Its totient is φ = 2011302121330.

The previous prime is 2011302121249. The next prime is 2011302121351. The reversal of 2011302121331 is 1331212031102.

It is a happy number.

It is an a-pointer prime, because the next prime (2011302121351) can be obtained adding 2011302121331 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011302121331 - 2³⁴ = 1994122252147 is a prime.

It is a super-2 number, since 2×2011302121331² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2011302121351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005651060665 + 1005651060666.

It is an arithmetic number, because the mean of its divisors is an integer number (1005651060666).

Almost surely, 2^{2011302121331} is an apocalyptic number.

2011302121331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011302121331 is an equidigital number, since it uses as much as digits as its factorization.

2011302121331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2011302121331 its reverse (1331212031102), we get a palindrome (3342514152433).

The spelling of 2011302121331 in words is "two trillion, eleven billion, three hundred two million, one hundred twenty-one thousand, three hundred thirty-one".