1230232123 has 4 divisors (see below), whose sum is σ = 1247559408. Its totient is φ = 1212904840.

The previous prime is 1230232111. The next prime is 1230232127. The reversal of 1230232123 is 3212320321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1230232123 is a prime.

It is a super-2 number, since 2×1230232123² = 3026942152922174258, which contains 22 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 1230232123.

It is not an unprimeable number, because it can be changed into a prime (1230232127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8663536 + ... + 8663677.

It is an arithmetic number, because the mean of its divisors is an integer number (311889852).

Almost surely, 2^1230232123 is an apocalyptic number.

1230232123 is a deficient number, since it is larger than the sum of its proper divisors (17327285).

1230232123 is an equidigital number, since it uses as much as digits as its factorization.

1230232123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17327284.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1230232123 is about 35074.6649734534. The cubic root of 1230232123 is about 1071.5086654952.

Adding to 1230232123 its reverse (3212320321), we get a palindrome (4442552444).

The spelling of 1230232123 in words is "one billion, two hundred thirty million, two hundred thirty-two thousand, one hundred twenty-three".