142343222420 has 48 divisors (see below), whose sum is σ = 353403872640. Its totient is φ = 47120513664.

The previous prime is 142343222401. The next prime is 142343222467. The reversal of 142343222420 is 24222343241.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 17525894 + ... + 17534013.

It is an arithmetic number, because the mean of its divisors is an integer number (7362580680).

Almost surely, 2^142343222420 is an apocalyptic number.

142343222420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142343222420 is an abundant number, since it is smaller than the sum of its proper divisors (211060650220).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142343222420 is a wasteful number, since it uses less digits than its factorization.

142343222420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35059952 (or 35059950 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 142343222420 its reverse (24222343241), we get a palindrome (166565565661).

The spelling of 142343222420 in words is "one hundred forty-two billion, three hundred forty-three million, two hundred twenty-two thousand, four hundred twenty".