13011033509 has 2 divisors, whose sum is σ = 13011033510. Its totient is φ = 13011033508.

The previous prime is 13011033499. The next prime is 13011033527. The reversal of 13011033509 is 90533011031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10976752900 + 2034280609 = 104770^2 + 45103^2 .

It is a cyclic number.

It is not a de Polignac number, because 13011033509 - 2¹⁶ = 13010967973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13011033209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6505516754 + 6505516755.

It is an arithmetic number, because the mean of its divisors is an integer number (6505516755).

Almost surely, 2^13011033509 is an apocalyptic number.

It is an amenable number.

13011033509 is a deficient number, since it is larger than the sum of its proper divisors (1).

13011033509 is an equidigital number, since it uses as much as digits as its factorization.

13011033509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1215, while the sum is 26.

The spelling of 13011033509 in words is "thirteen billion, eleven million, thirty-three thousand, five hundred nine".