142321011509533 has 2 divisors, whose sum is σ = 142321011509534. Its totient is φ = 142321011509532.

The previous prime is 142321011509503. The next prime is 142321011509549. The reversal of 142321011509533 is 335905110123241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127452290933529 + 14868720576004 = 11289477^2 + 3855998^2 .

It is an emirp because it is prime and its reverse (335905110123241) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-142321011509533 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142321011509503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71160505754766 + 71160505754767.

It is an arithmetic number, because the mean of its divisors is an integer number (71160505754767).

Almost surely, 2^{142321011509533} is an apocalyptic number.

It is an amenable number.

142321011509533 is a deficient number, since it is larger than the sum of its proper divisors (1).

142321011509533 is an equidigital number, since it uses as much as digits as its factorization.

142321011509533 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 142321011509533 in words is "one hundred forty-two trillion, three hundred twenty-one billion, eleven million, five hundred nine thousand, five hundred thirty-three".