13013236631 has 8 divisors (see below), whose sum is σ = 13580916864. Its totient is φ = 12445713720.

The previous prime is 13013236543. The next prime is 13013236657. The reversal of 13013236631 is 13663231031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13013236631 - 2¹⁸ = 13012974487 is a prime.

It is a super-3 number, since 3×13013236631³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13013236594 and 13013236603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013236031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148940 + ... + 219566.

It is an arithmetic number, because the mean of its divisors is an integer number (1697614608).

Almost surely, 2^13013236631 is an apocalyptic number.

13013236631 is a deficient number, since it is larger than the sum of its proper divisors (567680233).

13013236631 is an equidigital number, since it uses as much as digits as its factorization.

13013236631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78661.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 13013236631 its reverse (13663231031), we get a palindrome (26676467662).

The spelling of 13013236631 in words is "thirteen billion, thirteen million, two hundred thirty-six thousand, six hundred thirty-one".