20420344413211 has 8 divisors (see below), whose sum is σ = 20434921868160. Its totient is φ = 20405767498368.

The previous prime is 20420344413163. The next prime is 20420344413229. The reversal of 20420344413211 is 11231444302402.

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 20420344413211 - 2⁷ = 20420344413083 is a prime.

It is a super-2 number, since 2×20420344413211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20420344443211) 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, 103908435 + ... + 104104771.

It is an arithmetic number, because the mean of its divisors is an integer number (2554365233520).

Almost surely, 2^{20420344413211} is an apocalyptic number.

20420344413211 is a deficient number, since it is larger than the sum of its proper divisors (14577454949).

20420344413211 is a wasteful number, since it uses less digits than its factorization.

20420344413211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270053.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 20420344413211 its reverse (11231444302402), we get a palindrome (31651788715613).

The spelling of 20420344413211 in words is "twenty trillion, four hundred twenty billion, three hundred forty-four million, four hundred thirteen thousand, two hundred eleven".