142320322036181 has 2 divisors, whose sum is σ = 142320322036182. Its totient is φ = 142320322036180.

The previous prime is 142320322036163. The next prime is 142320322036187. The reversal of 142320322036181 is 181630223023241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79232091340081 + 63088230696100 = 8901241^2 + 7942810^2 .

It is a cyclic number.

It is not a de Polignac number, because 142320322036181 - 2⁶ = 142320322036117 is a prime.

It is a super-2 number, since 2×142320322036181² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142320322036187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71160161018090 + 71160161018091.

It is an arithmetic number, because the mean of its divisors is an integer number (71160161018091).

Almost surely, 2^{142320322036181} is an apocalyptic number.

It is an amenable number.

142320322036181 is a deficient number, since it is larger than the sum of its proper divisors (1).

142320322036181 is an equidigital number, since it uses as much as digits as its factorization.

142320322036181 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 38.

The spelling of 142320322036181 in words is "one hundred forty-two trillion, three hundred twenty billion, three hundred twenty-two million, thirty-six thousand, one hundred eighty-one".