1310020004 has 6 divisors (see below), whose sum is σ = 2292535014. Its totient is φ = 655010000.

The previous prime is 1310019989. The next prime is 1310020007. The reversal of 1310020004 is 4000200131.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1080436900 + 229583104 = 32870^2 + 15152^2 .

It is not an unprimeable number, because it can be changed into a prime (1310020007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 163752497 + ... + 163752504.

It is an arithmetic number, because the mean of its divisors is an integer number (382089169).

Almost surely, 2^1310020004 is an apocalyptic number.

It is an amenable number.

1310020004 is a deficient number, since it is larger than the sum of its proper divisors (982515010).

1310020004 is a wasteful number, since it uses less digits than its factorization.

1310020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327505005 (or 327505003 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1310020004 is about 36194.1984853927. The cubic root of 1310020004 is about 1094.1897508162.

Adding to 1310020004 its reverse (4000200131), we get a palindrome (5310220135).

The spelling of 1310020004 in words is "one billion, three hundred ten million, twenty thousand, four".