13235631669813 has 48 divisors (see below), whose sum is σ = 20742929954880. Its totient is φ = 7484323359744.

The previous prime is 13235631669811. The next prime is 13235631669833. The reversal of 13235631669813 is 31896613653231.

It is not a de Polignac number, because 13235631669813 - 2¹ = 13235631669811 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13235631669811) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 125126895 + ... + 125232627.

It is an arithmetic number, because the mean of its divisors is an integer number (432144374060).

Almost surely, 2^{13235631669813} is an apocalyptic number.

It is an amenable number.

13235631669813 is a deficient number, since it is larger than the sum of its proper divisors (7507298285067).

13235631669813 is a wasteful number, since it uses less digits than its factorization.

13235631669813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114626 (or 114619 counting only the distinct ones).

The product of its digits is 12597120, while the sum is 57.

The spelling of 13235631669813 in words is "thirteen trillion, two hundred thirty-five billion, six hundred thirty-one million, six hundred sixty-nine thousand, eight hundred thirteen".