20213103230311 has 4 divisors (see below), whose sum is σ = 20225042454232. Its totient is φ = 20201164006392.

The previous prime is 20213103230231. The next prime is 20213103230323. The reversal of 20213103230311 is 11303230131202.

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 20213103230311 - 2¹³ = 20213103222119 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 (20213103230351) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5969609421 + ... + 5969612806.

It is an arithmetic number, because the mean of its divisors is an integer number (5056260613558).

Almost surely, 2^{20213103230311} is an apocalyptic number.

20213103230311 is a deficient number, since it is larger than the sum of its proper divisors (11939223921).

20213103230311 is a wasteful number, since it uses less digits than its factorization.

20213103230311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939223920.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20213103230311 its reverse (11303230131202), we get a palindrome (31516333361513).

The spelling of 20213103230311 in words is "twenty trillion, two hundred thirteen billion, one hundred three million, two hundred thirty thousand, three hundred eleven".