2101030120213 has 4 divisors (see below), whose sum is σ = 2101034030508. Its totient is φ = 2101026209920.

The previous prime is 2101030120201. The next prime is 2101030120229. The reversal of 2101030120213 is 3120210301012.

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 778950986724 + 1322079133489 = 882582^2 + 1149817^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101030120213 - 2¹³ = 2101030112021 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 (2101030120913) 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 in 3 ways as a sum of consecutive naturals, for example, 990556 + ... + 2276677.

It is an arithmetic number, because the mean of its divisors is an integer number (525258507627).

Almost surely, 2^{2101030120213} is an apocalyptic number.

It is an amenable number.

2101030120213 is a deficient number, since it is larger than the sum of its proper divisors (3910295).

2101030120213 is an equidigital number, since it uses as much as digits as its factorization.

2101030120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910294.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2101030120213 its reverse (3120210301012), we get a palindrome (5221240421225).

The spelling of 2101030120213 in words is "two trillion, one hundred one billion, thirty million, one hundred twenty thousand, two hundred thirteen".