144240111213442 has 8 divisors (see below), whose sum is σ = 216361301848956. Its totient is φ = 72119677263792.

The previous prime is 144240111213379. The next prime is 144240111213449. The reversal of 144240111213442 is 244312111042441.

It can be written as a sum of positive squares in 2 ways, for example, as 142210657394521 + 2029453818921 = 11925211^2 + 1424589^2 .

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

It is a super-2 number, since 2×144240111213442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144240111213398 and 144240111213407.

It is not an unprimeable number, because it can be changed into a prime (144240111213449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188694673 + ... + 189457540.

Almost surely, 2^{144240111213442} is an apocalyptic number.

144240111213442 is a deficient number, since it is larger than the sum of its proper divisors (72121190635514).

144240111213442 is a wasteful number, since it uses less digits than its factorization.

144240111213442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378342932.

The product of its (nonzero) digits is 24576, while the sum is 34.

Adding to 144240111213442 its reverse (244312111042441), we get a palindrome (388552222255883).

The spelling of 144240111213442 in words is "one hundred forty-four trillion, two hundred forty billion, one hundred eleven million, two hundred thirteen thousand, four hundred forty-two".