133003121100 has 36 divisors (see below), whose sum is σ = 384822364584. Its totient is φ = 35467498880.

The previous prime is 133003121081. The next prime is 133003121107. The reversal of 133003121100 is 1121300331.

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 133003121100.

It is not an unprimeable number, because it can be changed into a prime (133003121107) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 221671569 + ... + 221672168.

Almost surely, 2^133003121100 is an apocalyptic number.

133003121100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133003121100 is an abundant number, since it is smaller than the sum of its proper divisors (251819243484).

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

133003121100 is a wasteful number, since it uses less digits than its factorization.

133003121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443343754 (or 443343747 counting only the distinct ones).

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

Adding to 133003121100 its reverse (1121300331), we get a palindrome (134124421431).

The spelling of 133003121100 in words is "one hundred thirty-three billion, three million, one hundred twenty-one thousand, one hundred".