142120511342 has 16 divisors (see below), whose sum is σ = 216866976480. Its totient is φ = 69841081728.

The previous prime is 142120511339. The next prime is 142120511369. The reversal of 142120511342 is 243115021241.

It is a happy number.

142120511342 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×142120511342² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2360783 + ... + 2420234.

It is an arithmetic number, because the mean of its divisors is an integer number (13554186030).

Almost surely, 2^142120511342 is an apocalyptic number.

142120511342 is a deficient number, since it is larger than the sum of its proper divisors (74746465138).

142120511342 is a wasteful number, since it uses less digits than its factorization.

142120511342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4781275.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 142120511342 its reverse (243115021241), we get a palindrome (385235532583).

The spelling of 142120511342 in words is "one hundred forty-two billion, one hundred twenty million, five hundred eleven thousand, three hundred forty-two".