13531041109 has 2 divisors, whose sum is σ = 13531041110. Its totient is φ = 13531041108.

The previous prime is 13531041103. The next prime is 13531041131. The reversal of 13531041109 is 90114013531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13191671025 + 339370084 = 114855^2 + 18422^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531041109 - 2⁷ = 13531040981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531041103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765520554 + 6765520555.

It is an arithmetic number, because the mean of its divisors is an integer number (6765520555).

Almost surely, 2^13531041109 is an apocalyptic number.

It is an amenable number.

13531041109 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531041109 is an equidigital number, since it uses as much as digits as its factorization.

13531041109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 28.

The spelling of 13531041109 in words is "thirteen billion, five hundred thirty-one million, forty-one thousand, one hundred nine".