20104324087 has 2 divisors, whose sum is σ = 20104324088. Its totient is φ = 20104324086.

The previous prime is 20104324021. The next prime is 20104324091. The reversal of 20104324087 is 78042340102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20104324087 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20104324007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10052162043 + 10052162044.

It is an arithmetic number, because the mean of its divisors is an integer number (10052162044).

Almost surely, 2^20104324087 is an apocalyptic number.

20104324087 is a deficient number, since it is larger than the sum of its proper divisors (1).

20104324087 is an equidigital number, since it uses as much as digits as its factorization.

20104324087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10752, while the sum is 31.

Adding to 20104324087 its reverse (78042340102), we get a palindrome (98146664189).

The spelling of 20104324087 in words is "twenty billion, one hundred four million, three hundred twenty-four thousand, eighty-seven".