1331321302000 has 80 divisors (see below), whose sum is σ = 3221078694912. Its totient is φ = 532206969600.

The previous prime is 1331321301979. The next prime is 1331321302019. The reversal of 1331321302000 is 2031231331.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3125862 + ... + 3526138.

Almost surely, 2^{1331321302000} is an apocalyptic number.

1331321302000 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 1331321302000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1610539347456).

1331321302000 is an abundant number, since it is smaller than the sum of its proper divisors (1889757392912).

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

1331321302000 is a wasteful number, since it uses less digits than its factorization.

1331321302000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401963 (or 401947 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 1331321302000 its reverse (2031231331), we get a palindrome (1333352533331).

The spelling of 1331321302000 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-one million, three hundred two thousand".