142221431512323 has 12 divisors (see below), whose sum is σ = 208912837250520. Its totient is φ = 93207265849536.

The previous prime is 142221431512313. The next prime is 142221431512327. The reversal of 142221431512323 is 323215134122241.

142221431512323 is a `hidden beast` number, since 1 + 4 + 2 + 2 + 2 + 1 + 4 + 315 + 12 + 323 = 666.

It is not a de Polignac number, because 142221431512323 - 2⁹ = 142221431511811 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142221431512327) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 133918484886 + ... + 133918485947.

It is an arithmetic number, because the mean of its divisors is an integer number (17409403104210).

Almost surely, 2^{142221431512323} is an apocalyptic number.

142221431512323 is a deficient number, since it is larger than the sum of its proper divisors (66691405738197).

142221431512323 is a wasteful number, since it uses less digits than its factorization.

142221431512323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 267836970898 (or 267836970895 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

Adding to 142221431512323 its reverse (323215134122241), we get a palindrome (465436565634564).

The spelling of 142221431512323 in words is "one hundred forty-two trillion, two hundred twenty-one billion, four hundred thirty-one million, five hundred twelve thousand, three hundred twenty-three".