1031231204404 has 6 divisors (see below), whose sum is σ = 1804654607714. Its totient is φ = 515615602200.

The previous prime is 1031231204401. The next prime is 1031231204407. The reversal of 1031231204404 is 4044021321301.

It is an interprime number because it is at equal distance from previous prime (1031231204401) and next prime (1031231204407).

It can be written as a sum of positive squares in only one way, i.e., 627663231504 + 403567972900 = 792252^2 + 635270^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031231204401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 128903900547 + ... + 128903900554.

Almost surely, 2^{1031231204404} is an apocalyptic number.

It is an amenable number.

1031231204404 is a deficient number, since it is larger than the sum of its proper divisors (773423403310).

1031231204404 is a wasteful number, since it uses less digits than its factorization.

1031231204404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257807801105 (or 257807801103 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1031231204404 its reverse (4044021321301), we get a palindrome (5075252525705).

The spelling of 1031231204404 in words is "one trillion, thirty-one billion, two hundred thirty-one million, two hundred four thousand, four hundred four".