1330020123 has 4 divisors (see below), whose sum is σ = 1773360168. Its totient is φ = 886680080.

The previous prime is 1330020101. The next prime is 1330020157. The reversal of 1330020123 is 3210200331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1330020123 - 2¹⁰ = 1330019099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1330020163) 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 3 ways as a sum of consecutive naturals, for example, 221670018 + ... + 221670023.

It is an arithmetic number, because the mean of its divisors is an integer number (443340042).

Almost surely, 2^1330020123 is an apocalyptic number.

1330020123 is a deficient number, since it is larger than the sum of its proper divisors (443340045).

1330020123 is an equidigital number, since it uses as much as digits as its factorization.

1330020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443340044.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1330020123 is about 36469.4409471821. The cubic root of 1330020123 is about 1099.7299951628.

Adding to 1330020123 its reverse (3210200331), we get a palindrome (4540220454).

The spelling of 1330020123 in words is "one billion, three hundred thirty million, twenty thousand, one hundred twenty-three".