2011331121203 has 2 divisors, whose sum is σ = 2011331121204. Its totient is φ = 2011331121202.

The previous prime is 2011331121109. The next prime is 2011331121253. The reversal of 2011331121203 is 3021211331102.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011331121203 - 2²² = 2011326926899 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011331121253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005665560601 + 1005665560602.

It is an arithmetic number, because the mean of its divisors is an integer number (1005665560602).

Almost surely, 2^{2011331121203} is an apocalyptic number.

2011331121203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011331121203 is an equidigital number, since it uses as much as digits as its factorization.

2011331121203 is an odious number, because the sum of its binary digits is odd.

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

Adding to 2011331121203 its reverse (3021211331102), we get a palindrome (5032542452305).

The spelling of 2011331121203 in words is "two trillion, eleven billion, three hundred thirty-one million, one hundred twenty-one thousand, two hundred three".