1230312242 has 4 divisors (see below), whose sum is σ = 1845468366. Its totient is φ = 615156120.

The previous prime is 1230312227. The next prime is 1230312257. The reversal of 1230312242 is 2422130321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2422130321 = 13 ⋅186317717.

It is an interprime number because it is at equal distance from previous prime (1230312227) and next prime (1230312257).

It can be written as a sum of positive squares in only one way, i.e., 1229834761 + 477481 = 35069^2 + 691^2 .

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 as a sum of consecutive naturals, namely, 307578059 + ... + 307578062.

Almost surely, 2^1230312242 is an apocalyptic number.

1230312242 is a deficient number, since it is larger than the sum of its proper divisors (615156124).

1230312242 is an equidigital number, since it uses as much as digits as its factorization.

1230312242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615156123.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1230312242 is about 35075.8070755328. The cubic root of 1230312242 is about 1071.5319256962.

Adding to 1230312242 its reverse (2422130321), we get a palindrome (3652442563).

The spelling of 1230312242 in words is "one billion, two hundred thirty million, three hundred twelve thousand, two hundred forty-two".