2001101001203 has 2 divisors, whose sum is σ = 2001101001204. Its totient is φ = 2001101001202.

The previous prime is 2001101001197. The next prime is 2001101001227. The reversal of 2001101001203 is 3021001011002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2001101001203 - 2¹⁰ = 2001101000179 is a prime.

It is not a weakly prime, because it can be changed into another prime (2001101001233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000550500601 + 1000550500602.

It is an arithmetic number, because the mean of its divisors is an integer number (1000550500602).

Almost surely, 2^{2001101001203} is an apocalyptic number.

2001101001203 is a deficient number, since it is larger than the sum of its proper divisors (1).

2001101001203 is an equidigital number, since it uses as much as digits as its factorization.

2001101001203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 2001101001203 its reverse (3021001011002), we get a palindrome (5022102012205).

The spelling of 2001101001203 in words is "two trillion, one billion, one hundred one million, one thousand, two hundred three".