13021021111011 has 16 divisors (see below), whose sum is σ = 17539902239904. Its totient is φ = 8591866988544.

The previous prime is 13021021110997. The next prime is 13021021111013. The reversal of 13021021111011 is 11011112012031.

It is not a de Polignac number, because 13021021111011 - 2⁹ = 13021021110499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13021021111013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56964136 + ... + 57192261.

It is an arithmetic number, because the mean of its divisors is an integer number (1096243889994).

Almost surely, 2^{13021021111011} is an apocalyptic number.

13021021111011 is a deficient number, since it is larger than the sum of its proper divisors (4518881128893).

13021021111011 is a wasteful number, since it uses less digits than its factorization.

13021021111011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114156790.

The product of its (nonzero) digits is 12, while the sum is 15.

Adding to 13021021111011 its reverse (11011112012031), we get a palindrome (24032133123042).

The spelling of 13021021111011 in words is "thirteen trillion, twenty-one billion, twenty-one million, one hundred eleven thousand, eleven".