2101101001003 has 2 divisors, whose sum is σ = 2101101001004. Its totient is φ = 2101101001002.

The previous prime is 2101101000983. The next prime is 2101101001019. The reversal of 2101101001003 is 3001001011012.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101101001003 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101101001903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050550500501 + 1050550500502.

It is an arithmetic number, because the mean of its divisors is an integer number (1050550500502).

Almost surely, 2^{2101101001003} is an apocalyptic number.

2101101001003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101101001003 is an equidigital number, since it uses as much as digits as its factorization.

2101101001003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 2101101001003 its reverse (3001001011012), we get a palindrome (5102102012015).

The spelling of 2101101001003 in words is "two trillion, one hundred one billion, one hundred one million, one thousand, three".