1330213123 has 4 divisors (see below), whose sum is σ = 1400224360. Its totient is φ = 1260201888.

The previous prime is 1330213103. The next prime is 1330213141. The reversal of 1330213123 is 3213120331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3213120331 = 73 ⋅44015347.

It is a cyclic number.

It is not a de Polignac number, because 1330213123 - 2⁵ = 1330213091 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 70011217 = 1330213123 / (1 + 3 + 3 + 0 + 2 + 1 + 3 + 1 + 2 + 3).

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 1330213123.

It is not an unprimeable number, because it can be changed into a prime (1330213103) 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, 35005590 + ... + 35005627.

It is an arithmetic number, because the mean of its divisors is an integer number (350056090).

Almost surely, 2^1330213123 is an apocalyptic number.

1330213123 is a deficient number, since it is larger than the sum of its proper divisors (70011237).

1330213123 is an equidigital number, since it uses as much as digits as its factorization.

1330213123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70011236.

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

The square root of 1330213123 is about 36472.0869021777. The cubic root of 1330213123 is about 1099.7831867449.

Adding to 1330213123 its reverse (3213120331), we get a palindrome (4543333454).

The spelling of 1330213123 in words is "one billion, three hundred thirty million, two hundred thirteen thousand, one hundred twenty-three".