1243124342104 has 64 divisors (see below), whose sum is σ = 2403534276000. Its totient is φ = 602322739200.

The previous prime is 1243124342029. The next prime is 1243124342113. The reversal of 1243124342104 is 4012434213421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75879994 + ... + 75896374.

Almost surely, 2^{1243124342104} is an apocalyptic number.

It is an amenable number.

1243124342104 is a deficient number, since it is larger than the sum of its proper divisors (1160409933896).

1243124342104 is a wasteful number, since it uses less digits than its factorization.

1243124342104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17444 (or 17440 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 1243124342104 its reverse (4012434213421), we get a palindrome (5255558555525).

The spelling of 1243124342104 in words is "one trillion, two hundred forty-three billion, one hundred twenty-four million, three hundred forty-two thousand, one hundred four".