213003111001 has 2 divisors, whose sum is σ = 213003111002. Its totient is φ = 213003111000.

The previous prime is 213003110981. The next prime is 213003111023. The reversal of 213003111001 is 100111300312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 118732619776 + 94270491225 = 344576^2 + 307035^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213003111001 is a prime.

It is a super-2 number, since 2×213003111001² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (213003111031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106501555500 + 106501555501.

It is an arithmetic number, because the mean of its divisors is an integer number (106501555501).

Almost surely, 2^213003111001 is an apocalyptic number.

It is an amenable number.

213003111001 is a deficient number, since it is larger than the sum of its proper divisors (1).

213003111001 is an equidigital number, since it uses as much as digits as its factorization.

213003111001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 213003111001 its reverse (100111300312), we get a palindrome (313114411313).

The spelling of 213003111001 in words is "two hundred thirteen billion, three million, one hundred eleven thousand, one".