1040321313044 has 48 divisors (see below), whose sum is σ = 2013660190080. Its totient is φ = 467238360960.

The previous prime is 1040321313041. The next prime is 1040321313071. The reversal of 1040321313044 is 4403131230401.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040321313041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263312 + ... + 1466279.

It is an arithmetic number, because the mean of its divisors is an integer number (41951253960).

Almost surely, 2^{1040321313044} is an apocalyptic number.

It is an amenable number.

1040321313044 is a deficient number, since it is larger than the sum of its proper divisors (973338877036).

1040321313044 is a wasteful number, since it uses less digits than its factorization.

1040321313044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729920 (or 1729918 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 1040321313044 its reverse (4403131230401), we get a palindrome (5443452543445).

The spelling of 1040321313044 in words is "one trillion, forty billion, three hundred twenty-one million, three hundred thirteen thousand, forty-four".