1331304322000 has 40 divisors (see below), whose sum is σ = 3219093855432. Its totient is φ = 532521728000.

The previous prime is 1331304321983. The next prime is 1331304322021. The reversal of 1331304322000 is 2234031331.

It can be written as a sum of positive squares in 4 ways, for example, as 37771145104 + 1293533176896 = 194348^2 + 1137336^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332824081 + ... + 332828080.

Almost surely, 2^{1331304322000} is an apocalyptic number.

1331304322000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331304322000 is an abundant number, since it is smaller than the sum of its proper divisors (1887789533432).

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

1331304322000 is an equidigital number, since it uses as much as digits as its factorization.

1331304322000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665652184 (or 665652168 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 1331304322000 its reverse (2234031331), we get a palindrome (1333538353331).

The spelling of 1331304322000 in words is "one trillion, three hundred thirty-one billion, three hundred four million, three hundred twenty-two thousand".