1320121133 has 8 divisors (see below), whose sum is σ = 1377999168. Its totient is φ = 1262283264.

The previous prime is 1320121091. The next prime is 1320121163. The reversal of 1320121133 is 3311210231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1320121133 - 2⁸ = 1320120877 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 (1320121163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71210 + ... + 87812.

It is an arithmetic number, because the mean of its divisors is an integer number (172249896).

Almost surely, 2^1320121133 is an apocalyptic number.

It is an amenable number.

1320121133 is a deficient number, since it is larger than the sum of its proper divisors (57878035).

1320121133 is a wasteful number, since it uses less digits than its factorization.

1320121133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20083.

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

The square root of 1320121133 is about 36333.4712489737. The cubic root of 1320121133 is about 1096.9948645648.

Adding to 1320121133 its reverse (3311210231), we get a palindrome (4631331364).

The spelling of 1320121133 in words is "one billion, three hundred twenty million, one hundred twenty-one thousand, one hundred thirty-three".