213002320021 has 8 divisors (see below), whose sum is σ = 216213379200. Its totient is φ = 209804131680.

The previous prime is 213002320019. The next prime is 213002320049. The reversal of 213002320021 is 120023200312.

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 213002320021 - 2¹ = 213002320019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213002319977 and 213002320004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213002390021) 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, 3184360 + ... + 3250561.

It is an arithmetic number, because the mean of its divisors is an integer number (27026672400).

Almost surely, 2^213002320021 is an apocalyptic number.

It is an amenable number.

213002320021 is a deficient number, since it is larger than the sum of its proper divisors (3211059179).

213002320021 is an equidigital number, since it uses as much as digits as its factorization.

213002320021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6435419.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 213002320021 its reverse (120023200312), we get a palindrome (333025520333).

The spelling of 213002320021 in words is "two hundred thirteen billion, two million, three hundred twenty thousand, twenty-one".