13211504047 has 4 divisors (see below), whose sum is σ = 15098861776. Its totient is φ = 11324146320.

The previous prime is 13211504041. The next prime is 13211504051. The reversal of 13211504047 is 74040511231.

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 13211504047 - 2⁷ = 13211503919 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 (13211504041) 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, 943678854 + ... + 943678867.

It is an arithmetic number, because the mean of its divisors is an integer number (3774715444).

Almost surely, 2^13211504047 is an apocalyptic number.

13211504047 is a deficient number, since it is larger than the sum of its proper divisors (1887357729).

13211504047 is an equidigital number, since it uses as much as digits as its factorization.

13211504047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1887357728.

The product of its (nonzero) digits is 3360, while the sum is 28.

The spelling of 13211504047 in words is "thirteen billion, two hundred eleven million, five hundred four thousand, forty-seven".