1331331302320 has 40 divisors (see below), whose sum is σ = 3105234618336. Its totient is φ = 530831129088.

The previous prime is 1331331302303. The next prime is 1331331302363. The reversal of 1331331302320 is 232031331331.

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

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, 26559052 + ... + 26609131.

Almost surely, 2^{1331331302320} is an apocalyptic number.

1331331302320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331331302320 is an abundant number, since it is smaller than the sum of its proper divisors (1773903316016).

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

1331331302320 is a wasteful number, since it uses less digits than its factorization.

1331331302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53168509 (or 53168503 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 1331331302320 its reverse (232031331331), we get a palindrome (1563362633651).

The spelling of 1331331302320 in words is "one trillion, three hundred thirty-one billion, three hundred thirty-one million, three hundred two thousand, three hundred twenty".