1201230133 has 4 divisors (see below), whose sum is σ = 1207519488. Its totient is φ = 1194940780.

The previous prime is 1201230127. The next prime is 1201230139. The reversal of 1201230133 is 3310321021.

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 an interprime number because it is at equal distance from previous prime (1201230127) and next prime (1201230139).

It is a cyclic number.

It is not a de Polignac number, because 1201230133 - 2⁵ = 1201230101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201230139) 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, 3144391 + ... + 3144772.

It is an arithmetic number, because the mean of its divisors is an integer number (301879872).

Almost surely, 2^1201230133 is an apocalyptic number.

It is an amenable number.

1201230133 is a deficient number, since it is larger than the sum of its proper divisors (6289355).

1201230133 is an equidigital number, since it uses as much as digits as its factorization.

1201230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6289354.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1201230133 is about 34658.7670438520. The cubic root of 1201230133 is about 1063.0215594462.

Adding to 1201230133 its reverse (3310321021), we get a palindrome (4511551154).

The spelling of 1201230133 in words is "one billion, two hundred one million, two hundred thirty thousand, one hundred thirty-three".