1230200133 has 4 divisors (see below), whose sum is σ = 1640266848. Its totient is φ = 820133420.

The previous prime is 1230200129. The next prime is 1230200141. The reversal of 1230200133 is 3310020321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1230200133 - 2² = 1230200129 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230200183) 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, 205033353 + ... + 205033358.

It is an arithmetic number, because the mean of its divisors is an integer number (410066712).

Almost surely, 2^1230200133 is an apocalyptic number.

It is an amenable number.

1230200133 is a deficient number, since it is larger than the sum of its proper divisors (410066715).

1230200133 is an equidigital number, since it uses as much as digits as its factorization.

1230200133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410066714.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1230200133 is about 35074.2089433247. The cubic root of 1230200133 is about 1071.4993778552.

Adding to 1230200133 its reverse (3310020321), we get a palindrome (4540220454).

The spelling of 1230200133 in words is "one billion, two hundred thirty million, two hundred thousand, one hundred thirty-three".