1330420123 has 4 divisors (see below), whose sum is σ = 1340896000. Its totient is φ = 1319944248.

The previous prime is 1330420121. The next prime is 1330420127. The reversal of 1330420123 is 3210240331.

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 1330420123 - 2¹ = 1330420121 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 1330420123.

It is not an unprimeable number, because it can be changed into a prime (1330420121) 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, 5237748 + ... + 5238001.

It is an arithmetic number, because the mean of its divisors is an integer number (335224000).

Almost surely, 2^1330420123 is an apocalyptic number.

1330420123 is a deficient number, since it is larger than the sum of its proper divisors (10475877).

1330420123 is a wasteful number, since it uses less digits than its factorization.

1330420123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10475876.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1330420123 is about 36474.9245784004. The cubic root of 1330420123 is about 1099.8402310655.

Adding to 1330420123 its reverse (3210240331), we get a palindrome (4540660454).

The spelling of 1330420123 in words is "one billion, three hundred thirty million, four hundred twenty thousand, one hundred twenty-three".