13313345631 has 8 divisors (see below), whose sum is σ = 18128811264. Its totient is φ = 8686721880.

The previous prime is 13313345597. The next prime is 13313345641. The reversal of 13313345631 is 13654331331.

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

It is not a de Polignac number, because 13313345631 - 2⁹ = 13313345119 is a prime.

It is a super-2 number, since 2×13313345631² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13313345592 and 13313345601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313345641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47210305 + ... + 47210586.

It is an arithmetic number, because the mean of its divisors is an integer number (2266101408).

Almost surely, 2^13313345631 is an apocalyptic number.

13313345631 is a deficient number, since it is larger than the sum of its proper divisors (4815465633).

13313345631 is an equidigital number, since it uses as much as digits as its factorization.

13313345631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94420941.

The product of its digits is 29160, while the sum is 33.

Adding to 13313345631 its reverse (13654331331), we get a palindrome (26967676962).

The spelling of 13313345631 in words is "thirteen billion, three hundred thirteen million, three hundred forty-five thousand, six hundred thirty-one".