133313321100 has 72 divisors (see below), whose sum is σ = 386322180048. Its totient is φ = 35494707200.

The previous prime is 133313321083. The next prime is 133313321111. The reversal of 133313321100 is 1123313331.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 154329 + ... + 538928.

It is an arithmetic number, because the mean of its divisors is an integer number (5365585834).

Almost surely, 2^133313321100 is an apocalyptic number.

133313321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133313321100 is an abundant number, since it is smaller than the sum of its proper divisors (253008858948).

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

133313321100 is a wasteful number, since it uses less digits than its factorization.

133313321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693915 (or 693908 counting only the distinct ones).

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

Adding to 133313321100 its reverse (1123313331), we get a palindrome (134436634431).

The spelling of 133313321100 in words is "one hundred thirty-three billion, three hundred thirteen million, three hundred twenty-one thousand, one hundred".