13243033444 has 6 divisors (see below), whose sum is σ = 23175308534. Its totient is φ = 6621516720.

The previous prime is 13243033429. The next prime is 13243033477. The reversal of 13243033444 is 44433034231.

It can be written as a sum of positive squares in only one way, i.e., 9769345600 + 3473687844 = 98840^2 + 58938^2 .

It is a super-2 number, since 2×13243033444² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1655379177 + ... + 1655379184.

Almost surely, 2^13243033444 is an apocalyptic number.

It is an amenable number.

13243033444 is a deficient number, since it is larger than the sum of its proper divisors (9932275090).

13243033444 is a wasteful number, since it uses less digits than its factorization.

13243033444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310758365 (or 3310758363 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 13243033444 its reverse (44433034231), we get a palindrome (57676067675).

The spelling of 13243033444 in words is "thirteen billion, two hundred forty-three million, thirty-three thousand, four hundred forty-four".