1242044143124 has 6 divisors (see below), whose sum is σ = 2173577250474. Its totient is φ = 621022071560.

The previous prime is 1242044143117. The next prime is 1242044143159. The reversal of 1242044143124 is 4213414402421.

It can be written as a sum of positive squares in only one way, i.e., 835597092100 + 406447051024 = 914110^2 + 637532^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155255517887 + ... + 155255517894.

It is an arithmetic number, because the mean of its divisors is an integer number (362262875079).

Almost surely, 2^{1242044143124} is an apocalyptic number.

It is an amenable number.

1242044143124 is a deficient number, since it is larger than the sum of its proper divisors (931533107350).

1242044143124 is a wasteful number, since it uses less digits than its factorization.

1242044143124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310511035785 (or 310511035783 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 32.

Adding to 1242044143124 its reverse (4213414402421), we get a palindrome (5455458545545).

The spelling of 1242044143124 in words is "one trillion, two hundred forty-two billion, forty-four million, one hundred forty-three thousand, one hundred twenty-four".