1331013600 has 288 divisors, whose sum is σ = 5502147840. Its totient is φ = 304197120.

The previous prime is 1331013587. The next prime is 1331013683. The reversal of 1331013600 is 63101331.

It is a tau number, because it is divible by the number of its divisors (288).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 146799 + ... + 155601.

It is an arithmetic number, because the mean of its divisors is an integer number (19104680).

Almost surely, 2^1331013600 is an apocalyptic number.

1331013600 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1331013600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2751073920).

1331013600 is an abundant number, since it is smaller than the sum of its proper divisors (4171134240).

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

1331013600 is a wasteful number, since it uses less digits than its factorization.

1331013600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8839 (or 8820 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1331013600 is about 36483.0590822645. The cubic root of 1331013600 is about 1100.0037465437.

Adding to 1331013600 its reverse (63101331), we get a palindrome (1394114931).

The spelling of 1331013600 in words is "one billion, three hundred thirty-one million, thirteen thousand, six hundred".