1230201133 has 4 divisors (see below), whose sum is σ = 1405944160. Its totient is φ = 1054458108.

The previous prime is 1230201127. The next prime is 1230201143. The reversal of 1230201133 is 3311020321.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3311020321 = 7 ⋅473002903.

It is a cyclic number.

It is not a de Polignac number, because 1230201133 - 2⁵ = 1230201101 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 (1230201143) 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, 87871503 + ... + 87871516.

It is an arithmetic number, because the mean of its divisors is an integer number (351486040).

Almost surely, 2^1230201133 is an apocalyptic number.

It is an amenable number.

1230201133 is a deficient number, since it is larger than the sum of its proper divisors (175743027).

1230201133 is an equidigital number, since it uses as much as digits as its factorization.

1230201133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175743026.

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

The square root of 1230201133 is about 35074.2231988108. The cubic root of 1230201133 is about 1071.4996681871.

Adding to 1230201133 its reverse (3311020321), we get a palindrome (4541221454).

The spelling of 1230201133 in words is "one billion, two hundred thirty million, two hundred one thousand, one hundred thirty-three".