1330312123 has 16 divisors (see below), whose sum is σ = 1557388800. Its totient is φ = 1135854888.

The previous prime is 1330312079. The next prime is 1330312127. The reversal of 1330312123 is 3212130331.

It is not a de Polignac number, because 1330312123 - 2²⁵ = 1296757691 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 1330312123.

It is not an unprimeable number, because it can be changed into a prime (1330312127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 82836 + ... + 97582.

It is an arithmetic number, because the mean of its divisors is an integer number (97336800).

Almost surely, 2^1330312123 is an apocalyptic number.

1330312123 is a deficient number, since it is larger than the sum of its proper divisors (227076677).

1330312123 is an equidigital number, since it uses as much as digits as its factorization.

1330312123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15031 (or 15017 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1330312123 is about 36473.4440792202. Note that the first 3 decimals coincide. The cubic root of 1330312123 is about 1099.8104695496.

Adding to 1330312123 its reverse (3212130331), we get a palindrome (4542442454).

The spelling of 1330312123 in words is "one billion, three hundred thirty million, three hundred twelve thousand, one hundred twenty-three".