1331320241000 has 32 divisors (see below), whose sum is σ = 3115289366280. Its totient is φ = 532528096000.

The previous prime is 1331320240927. The next prime is 1331320241023. The reversal of 1331320241000 is 1420231331.

It can be written as a sum of positive squares in 4 ways, for example, as 96505907716 + 1234814333284 = 310654^2 + 1111222^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 665659121 + ... + 665661120.

Almost surely, 2^{1331320241000} is an apocalyptic number.

1331320241000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331320241000 is an abundant number, since it is smaller than the sum of its proper divisors (1783969125280).

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

1331320241000 is a wasteful number, since it uses less digits than its factorization.

1331320241000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331320262 (or 1331320248 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1331320241000 its reverse (1420231331), we get a palindrome (1332740472331).

The spelling of 1331320241000 in words is "one trillion, three hundred thirty-one billion, three hundred twenty million, two hundred forty-one thousand".