13433020309 has 4 divisors (see below), whose sum is σ = 13446178060. Its totient is φ = 13419862560.

The previous prime is 13433020277. The next prime is 13433020361. The reversal of 13433020309 is 90302033431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90302033431 = 1747 ⋅51689773.

It can be written as a sum of positive squares in 2 ways, for example, as 11744056900 + 1688963409 = 108370^2 + 41097^2 .

It is a cyclic number.

It is not a de Polignac number, because 13433020309 - 2⁵ = 13433020277 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 (13433020379) 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, 6577344 + ... + 6579385.

It is an arithmetic number, because the mean of its divisors is an integer number (3361544515).

Almost surely, 2^13433020309 is an apocalyptic number.

It is an amenable number.

13433020309 is a deficient number, since it is larger than the sum of its proper divisors (13157751).

13433020309 is a wasteful number, since it uses less digits than its factorization.

13433020309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13157750.

The product of its (nonzero) digits is 5832, while the sum is 28.

The spelling of 13433020309 in words is "thirteen billion, four hundred thirty-three million, twenty thousand, three hundred nine".