1331021311000 has 64 divisors (see below), whose sum is σ = 3144828847680. Its totient is φ = 527239468800.

The previous prime is 1331021310991. The next prime is 1331021311031. The reversal of 1331021311000 is 1131201331.

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, 6358269 + ... + 6564268.

It is an arithmetic number, because the mean of its divisors is an integer number (49137950745).

Almost surely, 2^{1331021311000} is an apocalyptic number.

1331021311000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331021311000 is an abundant number, since it is smaller than the sum of its proper divisors (1813807536680).

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

1331021311000 is a wasteful number, since it uses less digits than its factorization.

1331021311000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12922661 (or 12922647 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 1331021311000 its reverse (1131201331), we get a palindrome (1332152512331).

The spelling of 1331021311000 in words is "one trillion, three hundred thirty-one billion, twenty-one million, three hundred eleven thousand".