20343113101311 has 128 divisors (see below), whose sum is σ = 38609268375552. Its totient is φ = 9185120064000.

The previous prime is 20343113101303. The next prime is 20343113101361. The reversal of 20343113101311 is 11310131134302.

It is not a de Polignac number, because 20343113101311 - 2³ = 20343113101303 is a prime.

It is a super-3 number, since 3×20343113101311³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20343113101361) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 491406 + ... + 6397476.

It is an arithmetic number, because the mean of its divisors is an integer number (301634909184).

Almost surely, 2^{20343113101311} is an apocalyptic number.

20343113101311 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20343113101311 is a deficient number, since it is larger than the sum of its proper divisors (18266155274241).

20343113101311 is a wasteful number, since it uses less digits than its factorization.

20343113101311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5906173.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 20343113101311 its reverse (11310131134302), we get a palindrome (31653244235613).

The spelling of 20343113101311 in words is "twenty trillion, three hundred forty-three billion, one hundred thirteen million, one hundred one thousand, three hundred eleven".