142244543511 has 24 divisors (see below), whose sum is σ = 242913509280. Its totient is φ = 78479747136.

The previous prime is 142244543509. The next prime is 142244543527. The reversal of 142244543511 is 115345442241.

142244543511 is a `hidden beast` number, since 1 + 4 + 22 + 44 + 543 + 51 + 1 = 666.

It is not a de Polignac number, because 142244543511 - 2¹ = 142244543509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142244543531) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 38926620 + ... + 38930273.

It is an arithmetic number, because the mean of its divisors is an integer number (10121396220).

Almost surely, 2^142244543511 is an apocalyptic number.

142244543511 is a deficient number, since it is larger than the sum of its proper divisors (100668965769).

142244543511 is a wasteful number, since it uses less digits than its factorization.

142244543511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77856935 (or 77856932 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

Adding to 142244543511 its reverse (115345442241), we get a palindrome (257589985752).

The spelling of 142244543511 in words is "one hundred forty-two billion, two hundred forty-four million, five hundred forty-three thousand, five hundred eleven".