1331321333100 has 72 divisors (see below), whose sum is σ = 4202134254528. Its totient is φ = 322744564800.

The previous prime is 1331321333051. The next prime is 1331321333101. The reversal of 1331321333100 is 13331231331.

It is a super-2 number, since 2×1331321333100² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1331321333101) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 201712054 + ... + 201718653.

Almost surely, 2^{1331321333100} is an apocalyptic number.

1331321333100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1331321333100 is an abundant number, since it is smaller than the sum of its proper divisors (2870812921428).

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

1331321333100 is a wasteful number, since it uses less digits than its factorization.

1331321333100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403430735 (or 403430728 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 1331321333100 its reverse (13331231331), we get a palindrome (1344652564431).

The spelling of 1331321333100 in words is "one trillion, three hundred thirty-one billion, three hundred twenty-one million, three hundred thirty-three thousand, one hundred".