1331003404 has 12 divisors (see below), whose sum is σ = 2330134128. Its totient is φ = 665250800.

The previous prime is 1331003339. The next prime is 1331003407. The reversal of 1331003404 is 4043001331.

It is a super-4 number, since 4×1331003404⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1331003407) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50527 + ... + 72214.

It is an arithmetic number, because the mean of its divisors is an integer number (194177844).

Almost surely, 2^1331003404 is an apocalyptic number.

It is an amenable number.

1331003404 is a deficient number, since it is larger than the sum of its proper divisors (999130724).

1331003404 is a wasteful number, since it uses less digits than its factorization.

1331003404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125456 (or 125454 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1331003404 is about 36482.9193459076. The cubic root of 1331003404 is about 1100.0009377402. Note that the first 3 decimals are identical.

Adding to 1331003404 its reverse (4043001331), we get a palindrome (5374004735).

The spelling of 1331003404 in words is "one billion, three hundred thirty-one million, three thousand, four hundred four".