144311213013442 has 4 divisors (see below), whose sum is σ = 216466819520166. Its totient is φ = 72155606506720.

The previous prime is 144311213013389. The next prime is 144311213013479. The reversal of 144311213013442 is 244310312113441.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 86023194967161 + 58288018046281 = 9274869^2 + 7634659^2 .

It is a super-2 number, since 2×144311213013442² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 144311213013398 and 144311213013407.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36077803253359 + ... + 36077803253362.

Almost surely, 2^{144311213013442} is an apocalyptic number.

144311213013442 is a deficient number, since it is larger than the sum of its proper divisors (72155606506724).

144311213013442 is an equidigital number, since it uses as much as digits as its factorization.

144311213013442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72155606506723.

The product of its (nonzero) digits is 27648, while the sum is 34.

Adding to 144311213013442 its reverse (244310312113441), we get a palindrome (388621525126883).

Subtracting 144311213013442 from its reverse (244310312113441), we obtain a palindrome (99999099099999).

The spelling of 144311213013442 in words is "one hundred forty-four trillion, three hundred eleven billion, two hundred thirteen million, thirteen thousand, four hundred forty-two".