1230123130 has 8 divisors (see below), whose sum is σ = 2214221652. Its totient is φ = 492049248.

The previous prime is 1230123119. The next prime is 1230123157. The reversal of 1230123130 is 313210321.

It can be written as a sum of positive squares in 2 ways, for example, as 1229834761 + 288369 = 35069^2 + 537^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61506147 + ... + 61506166.

Almost surely, 2^1230123130 is an apocalyptic number.

1230123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230123130 is a deficient number, since it is larger than the sum of its proper divisors (984098522).

1230123130 is a wasteful number, since it uses less digits than its factorization.

1230123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123012320.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1230123130 is about 35073.1112107267. Note that the first 3 decimals coincide. The cubic root of 1230123130 is about 1071.4770209541.

Adding to 1230123130 its reverse (313210321), we get a palindrome (1543333451).

The spelling of 1230123130 in words is "one billion, two hundred thirty million, one hundred twenty-three thousand, one hundred thirty".