2011300381 has 2 divisors, whose sum is σ = 2011300382. Its totient is φ = 2011300380.

The previous prime is 2011300321. The next prime is 2011300391. The reversal of 2011300381 is 1830031102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1153689156 + 857611225 = 33966^2 + 29285^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011300381 - 2¹⁵ = 2011267613 is a prime.

It is a super-2 number, since 2×2011300381² = 8090658445221490322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011300321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005650190 + 1005650191.

It is an arithmetic number, because the mean of its divisors is an integer number (1005650191).

Almost surely, 2^2011300381 is an apocalyptic number.

It is an amenable number.

2011300381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011300381 is an equidigital number, since it uses as much as digits as its factorization.

2011300381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 2011300381 is about 44847.5236886051. The cubic root of 2011300381 is about 1262.2895260152.

Adding to 2011300381 its reverse (1830031102), we get a palindrome (3841331483).

The spelling of 2011300381 in words is "two billion, eleven million, three hundred thousand, three hundred eighty-one".