20142304204387 has 2 divisors, whose sum is σ = 20142304204388. Its totient is φ = 20142304204386.

The previous prime is 20142304204369. The next prime is 20142304204427. The reversal of 20142304204387 is 78340240324102.

It is a happy number.

It is an a-pointer prime, because the next prime (20142304204427) can be obtained adding 20142304204387 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20142304204387 - 2²³ = 20142295815779 is a prime.

It is not a weakly prime, because it can be changed into another prime (20142304204357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10071152102193 + 10071152102194.

It is an arithmetic number, because the mean of its divisors is an integer number (10071152102194).

Almost surely, 2^{20142304204387} is an apocalyptic number.

20142304204387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20142304204387 is an equidigital number, since it uses as much as digits as its factorization.

20142304204387 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 258048, while the sum is 40.

Adding to 20142304204387 its reverse (78340240324102), we get a palindrome (98482544528489).

The spelling of 20142304204387 in words is "twenty trillion, one hundred forty-two billion, three hundred four million, two hundred four thousand, three hundred eighty-seven".