123303030313 has 4 divisors (see below), whose sum is σ = 123327302868. Its totient is φ = 123278757760.

The previous prime is 123303030289. The next prime is 123303030343. The reversal of 123303030313 is 313030303321.

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

It can be written as a sum of positive squares in 2 ways, for example, as 51807222544 + 71495807769 = 227612^2 + 267387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123303030313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123303030343) 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, 12128656 + ... + 12138817.

It is an arithmetic number, because the mean of its divisors is an integer number (30831825717).

Almost surely, 2^123303030313 is an apocalyptic number.

It is an amenable number.

123303030313 is a deficient number, since it is larger than the sum of its proper divisors (24272555).

123303030313 is an equidigital number, since it uses as much as digits as its factorization.

123303030313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24272554.

The product of its (nonzero) digits is 1458, while the sum is 22.

Adding to 123303030313 its reverse (313030303321), we get a palindrome (436333333634).

The spelling of 123303030313 in words is "one hundred twenty-three billion, three hundred three million, thirty thousand, three hundred thirteen".