1313031300 has 72 divisors (see below), whose sum is σ = 4341763776. Its totient is φ = 300120960.

The previous prime is 1313031287. The next prime is 1313031367. The reversal of 1313031300 is 31303131.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1313031300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 310527 + ... + 314726.

Almost surely, 2^1313031300 is an apocalyptic number.

1313031300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1313031300 is an abundant number, since it is smaller than the sum of its proper divisors (3028732476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1313031300 is a wasteful number, since it uses less digits than its factorization.

1313031300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625277 (or 625270 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 15.

The square root of 1313031300 is about 36235.7737601945. The cubic root of 1313031300 is about 1095.0275008210.

Adding to 1313031300 its reverse (31303131), we get a palindrome (1344334431).

The spelling of 1313031300 in words is "one billion, three hundred thirteen million, thirty-one thousand, three hundred".