20311132033111 has 8 divisors (see below), whose sum is σ = 20322653480064. Its totient is φ = 20299613468640.

The previous prime is 20311132033069. The next prime is 20311132033123. The reversal of 20311132033111 is 11133023111302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20311132033111 - 2⁹ = 20311132032599 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 (20311132033141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13455141 + ... + 14888353.

It is an arithmetic number, because the mean of its divisors is an integer number (2540331685008).

Almost surely, 2^{20311132033111} is an apocalyptic number.

20311132033111 is a deficient number, since it is larger than the sum of its proper divisors (11521446953).

20311132033111 is a wasteful number, since it uses less digits than its factorization.

20311132033111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1441241.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 20311132033111 its reverse (11133023111302), we get a palindrome (31444155144413).

The spelling of 20311132033111 in words is "twenty trillion, three hundred eleven billion, one hundred thirty-two million, thirty-three thousand, one hundred eleven".