213021213113 has 8 divisors (see below), whose sum is σ = 215034028128. Its totient is φ = 211008805024.

The previous prime is 213021213103. The next prime is 213021213151. The reversal of 213021213113 is 311312120312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213021213113 - 2⁶ = 213021213049 is a prime.

It is a super-2 number, since 2×213021213113² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213021213103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1006970 + ... + 1200012.

It is an arithmetic number, because the mean of its divisors is an integer number (26879253516).

Almost surely, 2^213021213113 is an apocalyptic number.

It is an amenable number.

213021213113 is a deficient number, since it is larger than the sum of its proper divisors (2012815015).

213021213113 is a wasteful number, since it uses less digits than its factorization.

213021213113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203463.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 213021213113 its reverse (311312120312), we get a palindrome (524333333425).

The spelling of 213021213113 in words is "two hundred thirteen billion, twenty-one million, two hundred thirteen thousand, one hundred thirteen".