1243230342 has 16 divisors (see below), whose sum is σ = 2489212992. Its totient is φ = 413951400.

The previous prime is 1243230337. The next prime is 1243230361. The reversal of 1243230342 is 2430323421.

It is a super-3 number, since 3×1243230342³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 108784 + ... + 119667.

It is an arithmetic number, because the mean of its divisors is an integer number (155575812).

Almost surely, 2^1243230342 is an apocalyptic number.

1243230342 is an abundant number, since it is smaller than the sum of its proper divisors (1245982650).

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

1243230342 is a wasteful number, since it uses less digits than its factorization.

1243230342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229363.

The product of its (nonzero) digits is 3456, while the sum is 24.

The square root of 1243230342 is about 35259.4716636537. The cubic root of 1243230342 is about 1075.2691857347.

Adding to 1243230342 its reverse (2430323421), we get a palindrome (3673553763).

The spelling of 1243230342 in words is "one billion, two hundred forty-three million, two hundred thirty thousand, three hundred forty-two".