20213303011311 has 4 divisors (see below), whose sum is σ = 26951070681752. Its totient is φ = 13475535340872.

The previous prime is 20213303011243. The next prime is 20213303011333. The reversal of 20213303011311 is 11311030331202.

It is a happy number.

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

It is not a de Polignac number, because 20213303011311 - 2⁹ = 20213303010799 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 (20213303012311) 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, 3368883835216 + ... + 3368883835221.

It is an arithmetic number, because the mean of its divisors is an integer number (6737767670438).

Almost surely, 2^{20213303011311} is an apocalyptic number.

20213303011311 is a deficient number, since it is larger than the sum of its proper divisors (6737767670441).

20213303011311 is an equidigital number, since it uses as much as digits as its factorization.

20213303011311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6737767670440.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 20213303011311 its reverse (11311030331202), we get a palindrome (31524333342513).

The spelling of 20213303011311 in words is "twenty trillion, two hundred thirteen billion, three hundred three million, eleven thousand, three hundred eleven".