213002113 has 4 divisors (see below), whose sum is σ = 214083540. Its totient is φ = 211920688.

The previous prime is 213002089. The next prime is 213002123. The reversal of 213002113 is 311200312.

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 185722384 + 27279729 = 13628^2 + 5223^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213002113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213002093 and 213002102.

It is not an unprimeable number, because it can be changed into a prime (213002123) 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, 540418 + ... + 540811.

It is an arithmetic number, because the mean of its divisors is an integer number (53520885).

Almost surely, 2^213002113 is an apocalyptic number.

It is an amenable number.

213002113 is a deficient number, since it is larger than the sum of its proper divisors (1081427).

213002113 is a wasteful number, since it uses less digits than its factorization.

213002113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1081426.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 213002113 is about 14594.5919093341. The cubic root of 213002113 is about 597.2112367855.

Adding to 213002113 its reverse (311200312), we get a palindrome (524202425).

The spelling of 213002113 in words is "two hundred thirteen million, two thousand, one hundred thirteen".