142434240131 has 4 divisors (see below), whose sum is σ = 142438936200. Its totient is φ = 142429544064.

The previous prime is 142434240061. The next prime is 142434240139. The reversal of 142434240131 is 131042434241.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142434240131 is a prime.

It is a super-2 number, since 2×142434240131² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 142434240094 and 142434240103.

It is not an unprimeable number, because it can be changed into a prime (142434240139) 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, 2302241 + ... + 2363298.

It is an arithmetic number, because the mean of its divisors is an integer number (35609734050).

Almost surely, 2^142434240131 is an apocalyptic number.

142434240131 is a deficient number, since it is larger than the sum of its proper divisors (4696069).

142434240131 is an equidigital number, since it uses as much as digits as its factorization.

142434240131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4696068.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 142434240131 its reverse (131042434241), we get a palindrome (273476674372).

The spelling of 142434240131 in words is "one hundred forty-two billion, four hundred thirty-four million, two hundred forty thousand, one hundred thirty-one".