20000236387 has 2 divisors, whose sum is σ = 20000236388. Its totient is φ = 20000236386.

The previous prime is 20000236331. The next prime is 20000236423. The reversal of 20000236387 is 78363200002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20000236387 - 2⁷ = 20000236259 is a prime.

It is not a weakly prime, because it can be changed into another prime (20000236307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000118193 + 10000118194.

It is an arithmetic number, because the mean of its divisors is an integer number (10000118194).

Almost surely, 2^20000236387 is an apocalyptic number.

20000236387 is a deficient number, since it is larger than the sum of its proper divisors (1).

20000236387 is an equidigital number, since it uses as much as digits as its factorization.

20000236387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 31.

Adding to 20000236387 its reverse (78363200002), we get a palindrome (98363436389).

The spelling of 20000236387 in words is "twenty billion, two hundred thirty-six thousand, three hundred eighty-seven".