20331331332011 has 16 divisors (see below), whose sum is σ = 24038091268800. Its totient is φ = 16825194868608.

The previous prime is 20331331331951. The next prime is 20331331332019. The reversal of 20331331332011 is 11023313313302.

It is not a de Polignac number, because 20331331332011 - 2¹⁰ = 20331331330987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20331331332019) 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 15 ways as a sum of consecutive naturals, for example, 2500361 + ... + 6849413.

It is an arithmetic number, because the mean of its divisors is an integer number (1502380704300).

Almost surely, 2^{20331331332011} is an apocalyptic number.

20331331332011 is a deficient number, since it is larger than the sum of its proper divisors (3706759936789).

20331331332011 is a wasteful number, since it uses less digits than its factorization.

20331331332011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372118.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 20331331332011 its reverse (11023313313302), we get a palindrome (31354644645313).

The spelling of 20331331332011 in words is "twenty trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred thirty-two thousand, eleven".