1201133233 has 4 divisors (see below), whose sum is σ = 1229066608. Its totient is φ = 1173199860.

The previous prime is 1201133191. The next prime is 1201133251. The reversal of 1201133233 is 3323311021.

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: 3323311021 = 19429 ⋅171049.

It is a cyclic number.

It is not a de Polignac number, because 1201133233 - 2¹³ = 1201125041 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1201133233.

It is not an unprimeable number, because it can be changed into a prime (1201133273) 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, 13966623 + ... + 13966708.

It is an arithmetic number, because the mean of its divisors is an integer number (307266652).

Almost surely, 2^1201133233 is an apocalyptic number.

It is an amenable number.

1201133233 is a deficient number, since it is larger than the sum of its proper divisors (27933375).

1201133233 is an equidigital number, since it uses as much as digits as its factorization.

1201133233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27933374.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1201133233 is about 34657.3691009574. The cubic root of 1201133233 is about 1062.9929749821.

Adding to 1201133233 its reverse (3323311021), we get a palindrome (4524444254).

The spelling of 1201133233 in words is "one billion, two hundred one million, one hundred thirty-three thousand, two hundred thirty-three".