142323531101321 has 2 divisors, whose sum is σ = 142323531101322. Its totient is φ = 142323531101320.

The previous prime is 142323531101293. The next prime is 142323531101357. The reversal of 142323531101321 is 123101135323241.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 128878438871296 + 13445092230025 = 11352464^2 + 3666755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142323531101321 is a prime.

It is not a weakly prime, because it can be changed into another prime (142323531101621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161765550660 + 71161765550661.

It is an arithmetic number, because the mean of its divisors is an integer number (71161765550661).

Almost surely, 2^{142323531101321} is an apocalyptic number.

It is an amenable number.

142323531101321 is a deficient number, since it is larger than the sum of its proper divisors (1).

142323531101321 is an equidigital number, since it uses as much as digits as its factorization.

142323531101321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 32.

Adding to 142323531101321 its reverse (123101135323241), we get a palindrome (265424666424562).

The spelling of 142323531101321 in words is "one hundred forty-two trillion, three hundred twenty-three billion, five hundred thirty-one million, one hundred one thousand, three hundred twenty-one".