1144123123242 has 96 divisors (see below), whose sum is σ = 2612090105856. Its totient is φ = 333586139040.

The previous prime is 1144123123211. The next prime is 1144123123279. The reversal of 1144123123242 is 2423213214411.

It is a happy number.

It is a super-2 number, since 2×1144123123242² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 1818103 + ... + 2365109.

It is an arithmetic number, because the mean of its divisors is an integer number (27209271936).

Almost surely, 2^{1144123123242} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1144123123242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1306045052928).

1144123123242 is an abundant number, since it is smaller than the sum of its proper divisors (1467966982614).

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

1144123123242 is a wasteful number, since it uses less digits than its factorization.

1144123123242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547144 (or 547133 counting only the distinct ones).

The product of its digits is 9216, while the sum is 30.

Adding to 1144123123242 its reverse (2423213214411), we get a palindrome (3567336337653).

The spelling of 1144123123242 in words is "one trillion, one hundred forty-four billion, one hundred twenty-three million, one hundred twenty-three thousand, two hundred forty-two".