20340330213 has 16 divisors (see below), whose sum is σ = 32063575680. Its totient is φ = 11222250816.

The previous prime is 20340330211. The next prime is 20340330223. The reversal of 20340330213 is 31203304302.

It is not a de Polignac number, because 20340330213 - 2¹ = 20340330211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 20340330213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20340330211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16699170 + ... + 16700387.

It is an arithmetic number, because the mean of its divisors is an integer number (2003973480).

Almost surely, 2^20340330213 is an apocalyptic number.

It is an amenable number.

20340330213 is a deficient number, since it is larger than the sum of its proper divisors (11723245467).

20340330213 is a wasteful number, since it uses less digits than its factorization.

20340330213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33399596.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 20340330213 its reverse (31203304302), we get a palindrome (51543634515).

The spelling of 20340330213 in words is "twenty billion, three hundred forty million, three hundred thirty thousand, two hundred thirteen".