142020304331 has 2 divisors, whose sum is σ = 142020304332. Its totient is φ = 142020304330.

The previous prime is 142020304319. The next prime is 142020304357. The reversal of 142020304331 is 133403020241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 142020304331 - 2⁶ = 142020304267 is a prime.

It is a super-2 number, since 2×142020304331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 142020304297 and 142020304306.

It is not a weakly prime, because it can be changed into another prime (142020304381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71010152165 + 71010152166.

It is an arithmetic number, because the mean of its divisors is an integer number (71010152166).

Almost surely, 2^142020304331 is an apocalyptic number.

142020304331 is a deficient number, since it is larger than the sum of its proper divisors (1).

142020304331 is an equidigital number, since it uses as much as digits as its factorization.

142020304331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 142020304331 its reverse (133403020241), we get a palindrome (275423324572).

The spelling of 142020304331 in words is "one hundred forty-two billion, twenty million, three hundred four thousand, three hundred thirty-one".