20223884987 has 2 divisors, whose sum is σ = 20223884988. Its totient is φ = 20223884986.

The previous prime is 20223884957. The next prime is 20223885041. The reversal of 20223884987 is 78948832202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20223884987 is a prime.

It is not a weakly prime, because it can be changed into another prime (20223884957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10111942493 + 10111942494.

It is an arithmetic number, because the mean of its divisors is an integer number (10111942494).

Almost surely, 2^20223884987 is an apocalyptic number.

20223884987 is a deficient number, since it is larger than the sum of its proper divisors (1).

20223884987 is an equidigital number, since it uses as much as digits as its factorization.

20223884987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3096576, while the sum is 53.

The spelling of 20223884987 in words is "twenty billion, two hundred twenty-three million, eight hundred eighty-four thousand, nine hundred eighty-seven".