144432121442 has 64 divisors (see below), whose sum is σ = 260772825600. Its totient is φ = 58658417664.

The previous prime is 144432121423. The next prime is 144432121447. The reversal of 144432121442 is 244121234441.

It is a junction number, because it is equal to n+sod(n) for n = 144432121399 and 144432121408.

It is not an unprimeable number, because it can be changed into a prime (144432121447) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16317434 + ... + 16326282.

It is an arithmetic number, because the mean of its divisors is an integer number (4074575400).

Almost surely, 2^144432121442 is an apocalyptic number.

144432121442 is a deficient number, since it is larger than the sum of its proper divisors (116340704158).

144432121442 is a wasteful number, since it uses less digits than its factorization.

144432121442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9347.

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

Adding to 144432121442 its reverse (244121234441), we get a palindrome (388553355883).

The spelling of 144432121442 in words is "one hundred forty-four billion, four hundred thirty-two million, one hundred twenty-one thousand, four hundred forty-two".