2101000000133 has 4 divisors (see below), whose sum is σ = 2135442623148. Its totient is φ = 2066557377120.

The previous prime is 2101000000129. The next prime is 2101000000147. The reversal of 2101000000133 is 3310000001012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 953665527364 + 1147334472769 = 976558^2 + 1071137^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101000000133 - 2² = 2101000000129 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2101000005133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17221311416 + ... + 17221311537.

It is an arithmetic number, because the mean of its divisors is an integer number (533860655787).

Almost surely, 2^{2101000000133} is an apocalyptic number.

It is an amenable number.

2101000000133 is a deficient number, since it is larger than the sum of its proper divisors (34442623015).

2101000000133 is an equidigital number, since it uses as much as digits as its factorization.

2101000000133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34442623014.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 2101000000133 its reverse (3310000001012), we get a palindrome (5411000001145).

The spelling of 2101000000133 in words is "two trillion, one hundred one billion, one hundred thirty-three", and thus it is an aban number.