13113203344 has 10 divisors (see below), whose sum is σ = 25406831510. Its totient is φ = 6556601664.

The previous prime is 13113203333. The next prime is 13113203347. The reversal of 13113203344 is 44330231131.

It can be written as a sum of positive squares in only one way, i.e., 8941593600 + 4171609744 = 94560^2 + 64588^2 .

It is a super-2 number, since 2×13113203344² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13113203347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 409787589 + ... + 409787620.

It is an arithmetic number, because the mean of its divisors is an integer number (2540683151).

Almost surely, 2^13113203344 is an apocalyptic number.

It is an amenable number.

13113203344 is a deficient number, since it is larger than the sum of its proper divisors (12293628166).

13113203344 is an equidigital number, since it uses as much as digits as its factorization.

13113203344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 819575217 (or 819575211 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13113203344 its reverse (44330231131), we get a palindrome (57443434475).

The spelling of 13113203344 in words is "thirteen billion, one hundred thirteen million, two hundred three thousand, three hundred forty-four".