20204111213 has 32 divisors (see below), whose sum is σ = 24558062592. Its totient is φ = 16370035200.

The previous prime is 20204111201. The next prime is 20204111219. The reversal of 20204111213 is 31211140202.

It is a cyclic number.

It is not a de Polignac number, because 20204111213 - 2¹⁸ = 20203849069 is a prime.

It is a super-2 number, since 2×20204111213² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20204111191 and 20204111200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20204111219) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2020895 + ... + 2030867.

It is an arithmetic number, because the mean of its divisors is an integer number (767439456).

Almost surely, 2^20204111213 is an apocalyptic number.

It is an amenable number.

20204111213 is a deficient number, since it is larger than the sum of its proper divisors (4353951379).

20204111213 is a wasteful number, since it uses less digits than its factorization.

20204111213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10485.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 20204111213 its reverse (31211140202), we get a palindrome (51415251415).

The spelling of 20204111213 in words is "twenty billion, two hundred four million, one hundred eleven thousand, two hundred thirteen".