12013031303444 has 12 divisors (see below), whose sum is σ = 21024565716000. Its totient is φ = 6006012527448.

The previous prime is 12013031303437. The next prime is 12013031303453. The reversal of 12013031303444 is 44430313031021.

It is a happy number.

It is a super-2 number, since 2×12013031303444² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125727344 + ... + 125822855.

It is an arithmetic number, because the mean of its divisors is an integer number (1752047143000).

Almost surely, 2^{12013031303444} is an apocalyptic number.

It is an amenable number.

12013031303444 is a deficient number, since it is larger than the sum of its proper divisors (9011534412556).

12013031303444 is a wasteful number, since it uses less digits than its factorization.

12013031303444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251562142 (or 251562140 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 12013031303444 its reverse (44430313031021), we get a palindrome (56443344334465).

The spelling of 12013031303444 in words is "twelve trillion, thirteen billion, thirty-one million, three hundred three thousand, four hundred forty-four".