20343312213 has 24 divisors (see below), whose sum is σ = 32405681952. Its totient is φ = 11310564384.

The previous prime is 20343312173. The next prime is 20343312221. The reversal of 20343312213 is 31221334302.

It is not a de Polignac number, because 20343312213 - 2¹⁰ = 20343311189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343312313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1864695 + ... + 1875572.

It is an arithmetic number, because the mean of its divisors is an integer number (1350236748).

Almost surely, 2^20343312213 is an apocalyptic number.

It is an amenable number.

20343312213 is a deficient number, since it is larger than the sum of its proper divisors (12062369739).

20343312213 is a wasteful number, since it uses less digits than its factorization.

20343312213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3740321 (or 3740314 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 20343312213 its reverse (31221334302), we get a palindrome (51564646515).

The spelling of 20343312213 in words is "twenty billion, three hundred forty-three million, three hundred twelve thousand, two hundred thirteen".