1331331312000 has 128 divisors (see below), whose sum is σ = 4413363458400. Its totient is φ = 355021670400.

The previous prime is 1331331311929. The next prime is 1331331312019. The reversal of 1331331312000 is 2131331331.

It is a tau number, because it is divible by the number of its divisors (128).

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, 13820035 + ... + 13916034.

Almost surely, 2^{1331331312000} is an apocalyptic number.

1331331312000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331331312000 is an abundant number, since it is smaller than the sum of its proper divisors (3082032146400).

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

1331331312000 is an equidigital number, since it uses as much as digits as its factorization.

1331331312000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27736101 (or 27736079 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1331331312000 its reverse (2131331331), we get a palindrome (1333462643331).

The spelling of 1331331312000 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred twelve thousand".