13220312032011 has 16 divisors (see below), whose sum is σ = 20148940044288. Its totient is φ = 7553075520000.

The previous prime is 13220312031991. The next prime is 13220312032019. The reversal of 13220312032011 is 11023021302231.

It is not a de Polignac number, because 13220312032011 - 2¹⁰ = 13220312030987 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (13220312032019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57737115 + ... + 57965636.

It is an arithmetic number, because the mean of its divisors is an integer number (1259308752768).

Almost surely, 2^{13220312032011} is an apocalyptic number.

13220312032011 is a deficient number, since it is larger than the sum of its proper divisors (6928628012277).

13220312032011 is a wasteful number, since it uses less digits than its factorization.

13220312032011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115708202.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13220312032011 its reverse (11023021302231), we get a palindrome (24243333334242).

The spelling of 13220312032011 in words is "thirteen trillion, two hundred twenty billion, three hundred twelve million, thirty-two thousand, eleven".