13000400011 has 4 divisors (see below), whose sum is σ = 13000670712. Its totient is φ = 13000129312.

The previous prime is 13000399991. The next prime is 13000400029. The reversal of 13000400011 is 11000400031.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11000400031 = 29 ⋅379324139.

It is a cyclic number.

It is not a de Polignac number, because 13000400011 - 2¹⁵ = 13000367243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13000400081) 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, 41725 + ... + 166558.

It is an arithmetic number, because the mean of its divisors is an integer number (3250167678).

Almost surely, 2^13000400011 is an apocalyptic number.

13000400011 is a deficient number, since it is larger than the sum of its proper divisors (270701).

13000400011 is an equidigital number, since it uses as much as digits as its factorization.

13000400011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270700.

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 13000400011 its reverse (11000400031), we get a palindrome (24000800042).

The spelling of 13000400011 in words is "thirteen billion, four hundred thousand, eleven".