142442340131 has 16 divisors (see below), whose sum is σ = 175332201408. Its totient is φ = 112689705600.

The previous prime is 142442340127. The next prime is 142442340133. The reversal of 142442340131 is 131043244241.

It is a cyclic number.

It is not a de Polignac number, because 142442340131 - 2² = 142442340127 is a prime.

It is a super-2 number, since 2×142442340131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142442340094 and 142442340103.

It is not an unprimeable number, because it can be changed into a prime (142442340133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837761 + ... + 993341.

It is an arithmetic number, because the mean of its divisors is an integer number (10958262588).

Almost surely, 2^142442340131 is an apocalyptic number.

142442340131 is a deficient number, since it is larger than the sum of its proper divisors (32889861277).

142442340131 is a wasteful number, since it uses less digits than its factorization.

142442340131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165662.

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

Adding to 142442340131 its reverse (131043244241), we get a palindrome (273485584372).

The spelling of 142442340131 in words is "one hundred forty-two billion, four hundred forty-two million, three hundred forty thousand, one hundred thirty-one".