133135220100 has 72 divisors (see below), whose sum is σ = 387160095168. Its totient is φ = 35322492800.

The previous prime is 133135220069. The next prime is 133135220107. The reversal of 133135220100 is 1022531331.

It is not an unprimeable number, because it can be changed into a prime (133135220107) 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, 1067256 + ... + 1185455.

It is an arithmetic number, because the mean of its divisors is an integer number (5377223544).

Almost surely, 2^133135220100 is an apocalyptic number.

133135220100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133135220100 is an abundant number, since it is smaller than the sum of its proper divisors (254024875068).

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

133135220100 is a wasteful number, since it uses less digits than its factorization.

133135220100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2252925 (or 2252918 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 133135220100 its reverse (1022531331), we get a palindrome (134157751431).

The spelling of 133135220100 in words is "one hundred thirty-three billion, one hundred thirty-five million, two hundred twenty thousand, one hundred".