1201133321 has 4 divisors (see below), whose sum is σ = 1219060752. Its totient is φ = 1183205892.

The previous prime is 1201133303. The next prime is 1201133411. The reversal of 1201133321 is 1233311021.

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 a de Polignac number, because none of the positive numbers 2^k-1201133321 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 1201133321.

It is not an unprimeable number, because it can be changed into a prime (1201133821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8963615 + ... + 8963748.

It is an arithmetic number, because the mean of its divisors is an integer number (304765188).

Almost surely, 2^1201133321 is an apocalyptic number.

It is an amenable number.

1201133321 is a deficient number, since it is larger than the sum of its proper divisors (17927431).

1201133321 is an equidigital number, since it uses as much as digits as its factorization.

1201133321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17927430.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1201133321 is about 34657.3703705287. The cubic root of 1201133321 is about 1062.9930009418.

Adding to 1201133321 its reverse (1233311021), we get a palindrome (2434444342).

The spelling of 1201133321 in words is "one billion, two hundred one million, one hundred thirty-three thousand, three hundred twenty-one".