1320311331300 has 144 divisors (see below), whose sum is σ = 4128809892032. Its totient is φ = 323826163200.

The previous prime is 1320311331239. The next prime is 1320311331341. The reversal of 1320311331300 is 31331130231.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 469215 + ... + 1691385.

Almost surely, 2^{1320311331300} is an apocalyptic number.

1320311331300 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 1320311331300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2064404946016).

1320311331300 is an abundant number, since it is smaller than the sum of its proper divisors (2808498560732).

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

1320311331300 is a wasteful number, since it uses less digits than its factorization.

1320311331300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1222478 (or 1222471 counting only the distinct ones).

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

Adding to 1320311331300 its reverse (31331130231), we get a palindrome (1351642461531).

The spelling of 1320311331300 in words is "one trillion, three hundred twenty billion, three hundred eleven million, three hundred thirty-one thousand, three hundred".