142330021121 has 2 divisors, whose sum is σ = 142330021122. Its totient is φ = 142330021120.

The previous prime is 142330021063. The next prime is 142330021189. The reversal of 142330021121 is 121120033241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112990099600 + 29339921521 = 336140^2 + 171289^2 .

It is a cyclic number.

It is not a de Polignac number, because 142330021121 - 2³⁴ = 125150151937 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 142330021093 and 142330021102.

It is not a weakly prime, because it can be changed into another prime (142330021721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71165010560 + 71165010561.

It is an arithmetic number, because the mean of its divisors is an integer number (71165010561).

Almost surely, 2^142330021121 is an apocalyptic number.

It is an amenable number.

142330021121 is a deficient number, since it is larger than the sum of its proper divisors (1).

142330021121 is an equidigital number, since it uses as much as digits as its factorization.

142330021121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 142330021121 its reverse (121120033241), we get a palindrome (263450054362).

The spelling of 142330021121 in words is "one hundred forty-two billion, three hundred thirty million, twenty-one thousand, one hundred twenty-one".