20210013311 has 4 divisors (see below), whose sum is σ = 20237813232. Its totient is φ = 20182213392.

The previous prime is 20210013293. The next prime is 20210013331. The reversal of 20210013311 is 11331001202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20210013311 - 2²⁶ = 20142904447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210013331) 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 3 ways as a sum of consecutive naturals, for example, 13898870 + ... + 13900323.

It is an arithmetic number, because the mean of its divisors is an integer number (5059453308).

Almost surely, 2^20210013311 is an apocalyptic number.

20210013311 is a deficient number, since it is larger than the sum of its proper divisors (27799921).

20210013311 is an equidigital number, since it uses as much as digits as its factorization.

20210013311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27799920.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20210013311 its reverse (11331001202), we get a palindrome (31541014513).

The spelling of 20210013311 in words is "twenty billion, two hundred ten million, thirteen thousand, three hundred eleven".