142220531011 has 8 divisors (see below), whose sum is σ = 153179453504. Its totient is φ = 131264305920.

The previous prime is 142220531009. The next prime is 142220531021. The reversal of 142220531011 is 110135022241.

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

It is a cyclic number.

It is not a de Polignac number, because 142220531011 - 2¹ = 142220531009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142220531021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 564171 + ... + 776356.

It is an arithmetic number, because the mean of its divisors is an integer number (19147431688).

Almost surely, 2^142220531011 is an apocalyptic number.

142220531011 is a deficient number, since it is larger than the sum of its proper divisors (10958922493).

142220531011 is a wasteful number, since it uses less digits than its factorization.

142220531011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348701.

The product of its (nonzero) digits is 480, while the sum is 22.

Adding to 142220531011 its reverse (110135022241), we get a palindrome (252355553252).

The spelling of 142220531011 in words is "one hundred forty-two billion, two hundred twenty million, five hundred thirty-one thousand, eleven".