13103131344 has 40 divisors (see below), whose sum is σ = 35840920320. Its totient is φ = 4110786048.

The previous prime is 13103131339. The next prime is 13103131357. The reversal of 13103131344 is 44313130131.

It is a super-3 number, since 3×13103131344³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8028064 + ... + 8029695.

It is an arithmetic number, because the mean of its divisors is an integer number (896023008).

Almost surely, 2^13103131344 is an apocalyptic number.

It is an amenable number.

13103131344 is an abundant number, since it is smaller than the sum of its proper divisors (22737788976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13103131344 is a wasteful number, since it uses less digits than its factorization.

13103131344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16057787 (or 16057781 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 13103131344 its reverse (44313130131), we get a palindrome (57416261475).

The spelling of 13103131344 in words is "thirteen billion, one hundred three million, one hundred thirty-one thousand, three hundred forty-four".