13021321123011 has 32 divisors (see below), whose sum is σ = 17601758634240. Its totient is φ = 8561681078400.

The previous prime is 13021321122937. The next prime is 13021321123033. The reversal of 13021321123011 is 11032112312031.

It is not a de Polignac number, because 13021321123011 - 2³⁰ = 13020247381187 is a prime.

It is a super-2 number, since 2×13021321123011² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13021321113011) 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 31 ways as a sum of consecutive naturals, for example, 87006316 + ... + 87155846.

It is an arithmetic number, because the mean of its divisors is an integer number (550054957320).

Almost surely, 2^{13021321123011} is an apocalyptic number.

13021321123011 is a deficient number, since it is larger than the sum of its proper divisors (4580437511229).

13021321123011 is a wasteful number, since it uses less digits than its factorization.

13021321123011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150867.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 13021321123011 its reverse (11032112312031), we get a palindrome (24053433435042).

The spelling of 13021321123011 in words is "thirteen trillion, twenty-one billion, three hundred twenty-one million, one hundred twenty-three thousand, eleven".