13020001111 has 4 divisors (see below), whose sum is σ = 14021539672. Its totient is φ = 12018462552.

The previous prime is 13020001109. The next prime is 13020001117. The reversal of 13020001111 is 11110002031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11110002031 = 19 ⋅584736949.

It is a cyclic number.

It is not a de Polignac number, because 13020001111 - 2¹ = 13020001109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13020001117) 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, 500769261 + ... + 500769286.

It is an arithmetic number, because the mean of its divisors is an integer number (3505384918).

Almost surely, 2^13020001111 is an apocalyptic number.

13020001111 is a deficient number, since it is larger than the sum of its proper divisors (1001538561).

13020001111 is a wasteful number, since it uses less digits than its factorization.

13020001111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001538560.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 13020001111 its reverse (11110002031), we get a palindrome (24130003142).

The spelling of 13020001111 in words is "thirteen billion, twenty million, one thousand, one hundred eleven".