142321232131454 has 32 divisors (see below), whose sum is σ = 216482313350016. Its totient is φ = 70163900745120.

The previous prime is 142321232131453. The next prime is 142321232131459. The reversal of 142321232131454 is 454131232123241.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142321232131453) 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, 604714469 + ... + 604949775.

It is an arithmetic number, because the mean of its divisors is an integer number (6765072292188).

Almost surely, 2^{142321232131454} is an apocalyptic number.

142321232131454 is a deficient number, since it is larger than the sum of its proper divisors (74161081218562).

142321232131454 is a wasteful number, since it uses less digits than its factorization.

142321232131454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242600.

The product of its digits is 138240, while the sum is 38.

Adding to 142321232131454 its reverse (454131232123241), we get a palindrome (596452464254695).

The spelling of 142321232131454 in words is "one hundred forty-two trillion, three hundred twenty-one billion, two hundred thirty-two million, one hundred thirty-one thousand, four hundred fifty-four".