1230313123 has 4 divisors (see below), whose sum is σ = 1324952608. Its totient is φ = 1135673640.

The previous prime is 1230313037. The next prime is 1230313129. The reversal of 1230313123 is 3213130321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3213130321 = 4637 ⋅692933.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230313123 is a prime.

It is a super-3 number, since 3×1230313123³ (a number of 28 digits) contains 333 as substring.

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 1230313123.

It is not an unprimeable number, because it can be changed into a prime (1230313129) 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, 47319723 + ... + 47319748.

It is an arithmetic number, because the mean of its divisors is an integer number (331238152).

Almost surely, 2^1230313123 is an apocalyptic number.

1230313123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1230313123 is a deficient number, since it is larger than the sum of its proper divisors (94639485).

1230313123 is an equidigital number, since it uses as much as digits as its factorization.

1230313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94639484.

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

The square root of 1230313123 is about 35075.8196340442. The cubic root of 1230313123 is about 1071.5321814631.

Adding to 1230313123 its reverse (3213130321), we get a palindrome (4443443444).

The spelling of 1230313123 in words is "one billion, two hundred thirty million, three hundred thirteen thousand, one hundred twenty-three".