1330020121 has 4 divisors (see below), whose sum is σ = 1400021200. Its totient is φ = 1260019044.

The previous prime is 1330020101. The next prime is 1330020157. The reversal of 1330020121 is 1210200331.

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 not a de Polignac number, because 1330020121 - 2⁵ = 1330020089 is a prime.

It is a super-3 number, since 3×1330020121³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1330020101) 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, 35000511 + ... + 35000548.

It is an arithmetic number, because the mean of its divisors is an integer number (350005300).

Almost surely, 2^1330020121 is an apocalyptic number.

It is an amenable number.

1330020121 is a deficient number, since it is larger than the sum of its proper divisors (70001079).

1330020121 is an equidigital number, since it uses as much as digits as its factorization.

1330020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70001078.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1330020121 is about 36469.4409197618. The cubic root of 1330020121 is about 1099.7299946116.

Adding to 1330020121 its reverse (1210200331), we get a palindrome (2540220452).

The spelling of 1330020121 in words is "one billion, three hundred thirty million, twenty thousand, one hundred twenty-one".