20132311111211 has 4 divisors (see below), whose sum is σ = 21680950427472. Its totient is φ = 18583671794952.

The previous prime is 20132311111201. The next prime is 20132311111259. The reversal of 20132311111211 is 11211111323102.

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 20132311111211 - 2⁶ = 20132311111147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20132311111201) 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, 774319658111 + ... + 774319658136.

It is an arithmetic number, because the mean of its divisors is an integer number (5420237606868).

Almost surely, 2^{20132311111211} is an apocalyptic number.

20132311111211 is a deficient number, since it is larger than the sum of its proper divisors (1548639316261).

20132311111211 is a wasteful number, since it uses less digits than its factorization.

20132311111211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548639316260.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 20132311111211 its reverse (11211111323102), we get a palindrome (31343422434313).

The spelling of 20132311111211 in words is "twenty trillion, one hundred thirty-two billion, three hundred eleven million, one hundred eleven thousand, two hundred eleven".