1011203311133 has 2 divisors, whose sum is σ = 1011203311134. Its totient is φ = 1011203311132.

The previous prime is 1011203311123. The next prime is 1011203311193. The reversal of 1011203311133 is 3311133021101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 667557629764 + 343645681369 = 817042^2 + 586213^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011203311133 - 2⁴ = 1011203311117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011203311123) 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, 505601655566 + 505601655567.

It is an arithmetic number, because the mean of its divisors is an integer number (505601655567).

Almost surely, 2^{1011203311133} is an apocalyptic number.

It is an amenable number.

1011203311133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011203311133 is an equidigital number, since it uses as much as digits as its factorization.

1011203311133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 1011203311133 its reverse (3311133021101), we get a palindrome (4322336332234).

The spelling of 1011203311133 in words is "one trillion, eleven billion, two hundred three million, three hundred eleven thousand, one hundred thirty-three".