13020013111 has 4 divisors (see below), whose sum is σ = 14880014992. Its totient is φ = 11160011232.

The previous prime is 13020013079. The next prime is 13020013141. The reversal of 13020013111 is 11131002031.

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 13020013111 - 2⁵ = 13020013079 is a prime.

It is a super-2 number, since 2×13020013111² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13020013091 and 13020013100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020013141) 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, 930000930 + ... + 930000943.

It is an arithmetic number, because the mean of its divisors is an integer number (3720003748).

Almost surely, 2^13020013111 is an apocalyptic number.

13020013111 is a deficient number, since it is larger than the sum of its proper divisors (1860001881).

13020013111 is an equidigital number, since it uses as much as digits as its factorization.

13020013111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1860001880.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 13020013111 its reverse (11131002031), we get a palindrome (24151015142).

The spelling of 13020013111 in words is "thirteen billion, twenty million, thirteen thousand, one hundred eleven".