142321011551422 has 32 divisors (see below), whose sum is σ = 245265071454720. Its totient is φ = 61256852133120.

The previous prime is 142321011551393. The next prime is 142321011551423. The reversal of 142321011551422 is 224155110123241.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321011551423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81658483 + ... + 83383150.

It is an arithmetic number, because the mean of its divisors is an integer number (7664533482960).

Almost surely, 2^{142321011551422} is an apocalyptic number.

142321011551422 is a deficient number, since it is larger than the sum of its proper divisors (102944059903298).

142321011551422 is a wasteful number, since it uses less digits than its factorization.

142321011551422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165043728.

The product of its (nonzero) digits is 19200, while the sum is 34.

Adding to 142321011551422 its reverse (224155110123241), we get a palindrome (366476121674663).

The spelling of 142321011551422 in words is "one hundred forty-two trillion, three hundred twenty-one billion, eleven million, five hundred fifty-one thousand, four hundred twenty-two".