142323541504409 has 2 divisors, whose sum is σ = 142323541504410. Its totient is φ = 142323541504408.

The previous prime is 142323541504393. The next prime is 142323541504481. The reversal of 142323541504409 is 904405145323241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142309630009600 + 13911494809 = 11929360^2 + 117947^2 .

It is a cyclic number.

It is not a de Polignac number, because 142323541504409 - 2⁴ = 142323541504393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (142323541504909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 71161770752204 + 71161770752205.

It is an arithmetic number, because the mean of its divisors is an integer number (71161770752205).

Almost surely, 2^{142323541504409} is an apocalyptic number.

It is an amenable number.

142323541504409 is a deficient number, since it is larger than the sum of its proper divisors (1).

142323541504409 is an equidigital number, since it uses as much as digits as its factorization.

142323541504409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2073600, while the sum is 47.

The spelling of 142323541504409 in words is "one hundred forty-two trillion, three hundred twenty-three billion, five hundred forty-one million, five hundred four thousand, four hundred nine".