1230123276 has 144 divisors (see below), whose sum is σ = 3354624000. Its totient is φ = 379209600.

The previous prime is 1230123227. The next prime is 1230123277. The reversal of 1230123276 is 6723210321.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (1230123277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6181425 + ... + 6181623.

It is an arithmetic number, because the mean of its divisors is an integer number (23296000).

Almost surely, 2^1230123276 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230123276, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1677312000).

1230123276 is an abundant number, since it is smaller than the sum of its proper divisors (2124500724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1230123276 is a wasteful number, since it uses less digits than its factorization.

1230123276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460 (or 455 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 1230123276 is about 35073.1132920931. The cubic root of 1230123276 is about 1071.4770633443.

Adding to 1230123276 its reverse (6723210321), we get a palindrome (7953333597).

The spelling of 1230123276 in words is "one billion, two hundred thirty million, one hundred twenty-three thousand, two hundred seventy-six".