13331999999 has 4 divisors (see below), whose sum is σ = 13367177160. Its totient is φ = 13296822840.

The previous prime is 13331999987. The next prime is 13332000029. The reversal of 13331999999 is 99999913331.

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 13331999999 - 2²⁰ = 13330951423 is a prime.

It is a Duffinian number.

13331999999 is a modest number, since divided by 999999 gives 13331 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13331999939) 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, 17588012 + ... + 17588769.

It is an arithmetic number, because the mean of its divisors is an integer number (3341794290).

Almost surely, 2^13331999999 is an apocalyptic number.

13331999999 is a deficient number, since it is larger than the sum of its proper divisors (35177161).

13331999999 is an equidigital number, since it uses as much as digits as its factorization.

13331999999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35177160.

The product of its digits is 14348907, while the sum is 65.

The spelling of 13331999999 in words is "thirteen billion, three hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred ninety-nine".