1230312123 has 12 divisors (see below), whose sum is σ = 1825148208. Its totient is φ = 798040080.

The previous prime is 1230312043. The next prime is 1230312157. The reversal of 1230312123 is 3212130321.

1230312123 is a `hidden beast` number, since 1 + 230 + 312 + 123 = 666.

It is not a de Polignac number, because 1230312123 - 2²⁰ = 1229263547 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230312096 and 1230312105.

It is not an unprimeable number, because it can be changed into a prime (1230312023) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1846983 + ... + 1847648.

It is an arithmetic number, because the mean of its divisors is an integer number (152095684).

Almost surely, 2^1230312123 is an apocalyptic number.

1230312123 is a deficient number, since it is larger than the sum of its proper divisors (594836085).

1230312123 is a wasteful number, since it uses less digits than its factorization.

1230312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3694674 (or 3694671 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1230312123 is about 35075.8053792069. The cubic root of 1230312123 is about 1071.5318911488.

Adding to 1230312123 its reverse (3212130321), we get a palindrome (4442442444).

The spelling of 1230312123 in words is "one billion, two hundred thirty million, three hundred twelve thousand, one hundred twenty-three".