13531125007 has 2 divisors, whose sum is σ = 13531125008. Its totient is φ = 13531125006.

The previous prime is 13531124989. The next prime is 13531125011. The reversal of 13531125007 is 70052113531.

It is a strong prime.

It is an emirp because it is prime and its reverse (70052113531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13531125007 - 2¹¹ = 13531122959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531125107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765562503 + 6765562504.

It is an arithmetic number, because the mean of its divisors is an integer number (6765562504).

Almost surely, 2^13531125007 is an apocalyptic number.

13531125007 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531125007 is an equidigital number, since it uses as much as digits as its factorization.

13531125007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3150, while the sum is 28.

Adding to 13531125007 its reverse (70052113531), we get a palindrome (83583238538).

The spelling of 13531125007 in words is "thirteen billion, five hundred thirty-one million, one hundred twenty-five thousand, seven".