1321335500100 has 216 divisors, whose sum is σ = 4802527660224. Its totient is φ = 274563168000.

The previous prime is 1321335500057. The next prime is 1321335500131. The reversal of 1321335500100 is 10055331231.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 2345931 + ... + 2854130.

Almost surely, 2^{1321335500100} is an apocalyptic number.

1321335500100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1321335500100 is an abundant number, since it is smaller than the sum of its proper divisors (3481192160124).

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

1321335500100 is a wasteful number, since it uses less digits than its factorization.

1321335500100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5200107 (or 5200089 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 24.

The spelling of 1321335500100 in words is "one trillion, three hundred twenty-one billion, three hundred thirty-five million, five hundred thousand, one hundred".