142356421013 has 2 divisors, whose sum is σ = 142356421014. Its totient is φ = 142356421012.

The previous prime is 142356420917. The next prime is 142356421147. The reversal of 142356421013 is 310124653241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82276038244 + 60080382769 = 286838^2 + 245113^2 .

It is a cyclic number.

It is not a de Polignac number, because 142356421013 - 2¹⁴ = 142356404629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (142356420013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71178210506 + 71178210507.

It is an arithmetic number, because the mean of its divisors is an integer number (71178210507).

Almost surely, 2^142356421013 is an apocalyptic number.

It is an amenable number.

142356421013 is a deficient number, since it is larger than the sum of its proper divisors (1).

142356421013 is an equidigital number, since it uses as much as digits as its factorization.

142356421013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 142356421013 in words is "one hundred forty-two billion, three hundred fifty-six million, four hundred twenty-one thousand, thirteen".