1031444441213 has 32 divisors (see below), whose sum is σ = 1100936884320. Its totient is φ = 964583424000.

The previous prime is 1031444441177. The next prime is 1031444441219. The reversal of 1031444441213 is 3121444441301.

It can be written as a sum of positive squares in 16 ways, for example, as 220108290649 + 811336150564 = 469157^2 + 900742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1031444441213 - 2⁶ = 1031444441149 is a prime.

It is a super-2 number, since 2×1031444441213² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1031444441213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031444441219) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 137945231 + ... + 137952707.

It is an arithmetic number, because the mean of its divisors is an integer number (34404277635).

Almost surely, 2^{1031444441213} is an apocalyptic number.

It is an amenable number.

1031444441213 is a deficient number, since it is larger than the sum of its proper divisors (69492443107).

1031444441213 is a wasteful number, since it uses less digits than its factorization.

1031444441213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8369.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 1031444441213 its reverse (3121444441301), we get a palindrome (4152888882514).

The spelling of 1031444441213 in words is "one trillion, thirty-one billion, four hundred forty-four million, four hundred forty-one thousand, two hundred thirteen".