20011120232311 has 8 divisors (see below), whose sum is σ = 21551344015040. Its totient is φ = 18471025998432.

The previous prime is 20011120232287. The next prime is 20011120232321. The reversal of 20011120232311 is 11323202111002.

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 20011120232311 - 2³³ = 20002530297719 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 (20011120232321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32066271 + ... + 32684368.

It is an arithmetic number, because the mean of its divisors is an integer number (2693918001880).

Almost surely, 2^{20011120232311} is an apocalyptic number.

20011120232311 is a deficient number, since it is larger than the sum of its proper divisors (1540223782729).

20011120232311 is a wasteful number, since it uses less digits than its factorization.

20011120232311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64774425.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20011120232311 its reverse (11323202111002), we get a palindrome (31334322343313).

The spelling of 20011120232311 in words is "twenty trillion, eleven billion, one hundred twenty million, two hundred thirty-two thousand, three hundred eleven".