13203312100444 has 36 divisors (see below), whose sum is σ = 23731473144960. Its totient is φ = 6427366214080.

The previous prime is 13203312100427. The next prime is 13203312100483. The reversal of 13203312100444 is 44400121330231.

It is a happy number.

It is a super-2 number, since 2×13203312100444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224009 + ... + 5599360.

It is an arithmetic number, because the mean of its divisors is an integer number (659207587360).

Almost surely, 2^{13203312100444} is an apocalyptic number.

It is an amenable number.

13203312100444 is a deficient number, since it is larger than the sum of its proper divisors (10528161044516).

13203312100444 is a wasteful number, since it uses less digits than its factorization.

13203312100444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7823658 (or 7823609 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13203312100444 its reverse (44400121330231), we get a palindrome (57603433430675).

The spelling of 13203312100444 in words is "thirteen trillion, two hundred three billion, three hundred twelve million, one hundred thousand, four hundred forty-four".