142120343 has 4 divisors (see below), whose sum is σ = 142254360. Its totient is φ = 141986328.

The previous prime is 142120291. The next prime is 142120369. The reversal of 142120343 is 343021241.

142120343 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 142120343 - 2¹⁰ = 142119319 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142120393) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65405 + ... + 67542.

It is an arithmetic number, because the mean of its divisors is an integer number (35563590).

Almost surely, 2^142120343 is an apocalyptic number.

142120343 is a deficient number, since it is larger than the sum of its proper divisors (134017).

142120343 is a wasteful number, since it uses less digits than its factorization.

142120343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134016.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 142120343 is about 11921.4236985353. The cubic root of 142120343 is about 521.8576837359.

Adding to 142120343 its reverse (343021241), we get a palindrome (485141584).

The spelling of 142120343 in words is "one hundred forty-two million, one hundred twenty thousand, three hundred forty-three".