1031200331320 has 32 divisors (see below), whose sum is σ = 2320508290320. Its totient is φ = 412425457920.

The previous prime is 1031200331281. The next prime is 1031200331321. The reversal of 1031200331320 is 231330021301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031200331321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1402362 + ... + 2007241.

Almost surely, 2^{1031200331320} is an apocalyptic number.

1031200331320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031200331320 is an abundant number, since it is smaller than the sum of its proper divisors (1289307959000).

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

1031200331320 is a wasteful number, since it uses less digits than its factorization.

1031200331320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3417175 (or 3417171 counting only the distinct ones).

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

Adding to 1031200331320 its reverse (231330021301), we get a palindrome (1262530352621).

The spelling of 1031200331320 in words is "one trillion, thirty-one billion, two hundred million, three hundred thirty-one thousand, three hundred twenty".