1123412013242 has 8 divisors (see below), whose sum is σ = 1685233065396. Its totient is φ = 561667658112.

The previous prime is 1123412013233. The next prime is 1123412013247. The reversal of 1123412013242 is 2423102143211.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1074707495761 + 48704517481 = 1036681^2 + 220691^2 .

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

It is a super-4 number, since 4×1123412013242⁴ (a number of 49 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123412013247) 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, 19137623 + ... + 19196234.

Almost surely, 2^{1123412013242} is an apocalyptic number.

1123412013242 is a deficient number, since it is larger than the sum of its proper divisors (561821052154).

1123412013242 is a wasteful number, since it uses less digits than its factorization.

1123412013242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38348512.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1123412013242 its reverse (2423102143211), we get a palindrome (3546514156453).

The spelling of 1123412013242 in words is "one trillion, one hundred twenty-three billion, four hundred twelve million, thirteen thousand, two hundred forty-two".