13203287089 has 4 divisors (see below), whose sum is σ = 13560132724. Its totient is φ = 12846441456.

The previous prime is 13203287087. The next prime is 13203287171. The reversal of 13203287089 is 98078230231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8543859489 + 4659427600 = 92433^2 + 68260^2 .

It is a cyclic number.

It is not a de Polignac number, because 13203287089 - 2¹ = 13203287087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13203287087) 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, 178422762 + ... + 178422835.

It is an arithmetic number, because the mean of its divisors is an integer number (3390033181).

Almost surely, 2^13203287089 is an apocalyptic number.

It is an amenable number.

13203287089 is a deficient number, since it is larger than the sum of its proper divisors (356845635).

13203287089 is an equidigital number, since it uses as much as digits as its factorization.

13203287089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356845634.

The product of its (nonzero) digits is 145152, while the sum is 43.

The spelling of 13203287089 in words is "thirteen billion, two hundred three million, two hundred eighty-seven thousand, eighty-nine".