133100213123 has 4 divisors (see below), whose sum is σ = 133101465288. Its totient is φ = 133098960960.

The previous prime is 133100213111. The next prime is 133100213161. The reversal of 133100213123 is 321312001331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133100213123 - 2⁴ = 133100213107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133100213095 and 133100213104.

It is not an unprimeable number, because it can be changed into a prime (133100213173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 450161 + ... + 684722.

It is an arithmetic number, because the mean of its divisors is an integer number (33275366322).

Almost surely, 2^133100213123 is an apocalyptic number.

133100213123 is a deficient number, since it is larger than the sum of its proper divisors (1252165).

133100213123 is a wasteful number, since it uses less digits than its factorization.

133100213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1252164.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 133100213123 its reverse (321312001331), we get a palindrome (454412214454).

The spelling of 133100213123 in words is "one hundred thirty-three billion, one hundred million, two hundred thirteen thousand, one hundred twenty-three".