1301320123444 has 36 divisors (see below), whose sum is σ = 2503316635204. Its totient is φ = 591471936000.

The previous prime is 1301320123429. The next prime is 1301320123457. The reversal of 1301320123444 is 4443210231031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 550359227044 + 750960896400 = 741862^2 + 866580^2 .

It is a super-2 number, since 2×1301320123444² (a number of 25 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, 8520634 + ... + 8672014.

Almost surely, 2^{1301320123444} is an apocalyptic number.

It is an amenable number.

1301320123444 is a deficient number, since it is larger than the sum of its proper divisors (1201996511760).

1301320123444 is a wasteful number, since it uses less digits than its factorization.

1301320123444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169168 (or 169155 counting only the distinct ones).

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

Adding to 1301320123444 its reverse (4443210231031), we get a palindrome (5744530354475).

The spelling of 1301320123444 in words is "one trillion, three hundred one billion, three hundred twenty million, one hundred twenty-three thousand, four hundred forty-four".