133001321100 has 72 divisors (see below), whose sum is σ = 395217652368. Its totient is φ = 34508448000.

The previous prime is 133001321093. The next prime is 133001321111. The reversal of 133001321100 is 1123100331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 133001321100.

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, 5979951 + ... + 6002150.

Almost surely, 2^133001321100 is an apocalyptic number.

133001321100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133001321100 is an abundant number, since it is smaller than the sum of its proper divisors (262216331268).

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

133001321100 is a wasteful number, since it uses less digits than its factorization.

133001321100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11982155 (or 11982148 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 133001321100 its reverse (1123100331), we get a palindrome (134124421431).

The spelling of 133001321100 in words is "one hundred thirty-three billion, one million, three hundred twenty-one thousand, one hundred".