2100000133213 has 4 divisors (see below), whose sum is σ = 2172413930940. Its totient is φ = 2027586335488.

The previous prime is 2100000133207. The next prime is 2100000133241. The reversal of 2100000133213 is 3123310000012.

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 1431617036004 + 668383097209 = 1196502^2 + 817547^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2100000133213 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 (2100000134213) 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, 36206898820 + ... + 36206898877.

It is an arithmetic number, because the mean of its divisors is an integer number (543103482735).

Almost surely, 2^{2100000133213} is an apocalyptic number.

It is an amenable number.

2100000133213 is a deficient number, since it is larger than the sum of its proper divisors (72413797727).

2100000133213 is an equidigital number, since it uses as much as digits as its factorization.

2100000133213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72413797726.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 2100000133213 its reverse (3123310000012), we get a palindrome (5223310133225).

The spelling of 2100000133213 in words is "two trillion, one hundred billion, one hundred thirty-three thousand, two hundred thirteen".